{"id": "countdown-heldout-000000", "source": "countdown", "nums": [7, 10, 10, 17], "target": 30, "question": "Using the numbers 7, 10, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(10 + 17) - (7 - 10)"}
{"id": "countdown-heldout-000001", "source": "countdown", "nums": [3, 5, 9, 20], "target": 49, "question": "Using the numbers 3, 5, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "9 - (20 * (3 - 5))"}
{"id": "countdown-heldout-000002", "source": "countdown", "nums": [5, 14, 17, 25], "target": 11, "question": "Using the numbers 5, 14, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(5 + 14) + (17 - 25)"}
{"id": "countdown-heldout-000003", "source": "countdown", "nums": [9, 20, 22, 22], "target": 33, "question": "Using the numbers 9, 20, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(9 - 20) + (22 + 22)"}
{"id": "countdown-heldout-000004", "source": "countdown", "nums": [7, 15, 16, 16], "target": 24, "question": "Using the numbers 7, 15, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(7 - 15) + (16 + 16)"}
{"id": "countdown-heldout-000005", "source": "countdown", "nums": [6, 6, 7, 11], "target": 24, "question": "Using the numbers 6, 6, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(6 * 11) - (6 * 7)"}
{"id": "countdown-heldout-000006", "source": "countdown", "nums": [1, 8, 22, 24], "target": 55, "question": "Using the numbers 1, 8, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(1 + 8) + (22 + 24)"}
{"id": "countdown-heldout-000007", "source": "countdown", "nums": [4, 14, 19, 22], "target": 15, "question": "Using the numbers 4, 14, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(4 + 14) + (19 - 22)"}
{"id": "countdown-heldout-000008", "source": "countdown", "nums": [4, 6, 8, 23], "target": 54, "question": "Using the numbers 4, 6, 8, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "8 - (23 * (4 - 6))"}
{"id": "countdown-heldout-000009", "source": "countdown", "nums": [7, 11, 13, 16], "target": 48, "question": "Using the numbers 7, 11, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(7 * 11) - (13 + 16)"}
{"id": "countdown-heldout-000010", "source": "countdown", "nums": [1, 10, 11, 18], "target": 40, "question": "Using the numbers 1, 10, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(1 + 10) + (11 + 18)"}
{"id": "countdown-heldout-000011", "source": "countdown", "nums": [14, 15, 24, 25], "target": 48, "question": "Using the numbers 14, 15, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(14 - 15) + (24 + 25)"}
{"id": "countdown-heldout-000012", "source": "countdown", "nums": [5, 10, 15, 20], "target": 50, "question": "Using the numbers 5, 10, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(5 + 10) + (15 + 20)"}
{"id": "countdown-heldout-000013", "source": "countdown", "nums": [2, 7, 15, 22], "target": 43, "question": "Using the numbers 2, 7, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(2 * (7 + 22)) - 15"}
{"id": "countdown-heldout-000014", "source": "countdown", "nums": [1, 2, 16, 18], "target": 25, "question": "Using the numbers 1, 2, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "16 + (18 / (1 * 2))"}
{"id": "countdown-heldout-000015", "source": "countdown", "nums": [3, 3, 5, 7], "target": 96, "question": "Using the numbers 3, 3, 5, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "3 * ((5 * 7) - 3)"}
{"id": "countdown-heldout-000016", "source": "countdown", "nums": [4, 21, 22, 25], "target": 51, "question": "Using the numbers 4, 21, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(4 - 21) * (22 - 25)"}
{"id": "countdown-heldout-000017", "source": "countdown", "nums": [2, 8, 16, 19], "target": 37, "question": "Using the numbers 2, 8, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "2 * (19 - (8 / 16))"}
{"id": "countdown-heldout-000018", "source": "countdown", "nums": [2, 16, 17, 23], "target": 84, "question": "Using the numbers 2, 16, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(2 - 16) * (17 - 23)"}
{"id": "countdown-heldout-000019", "source": "countdown", "nums": [3, 5, 17, 21], "target": 18, "question": "Using the numbers 3, 5, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(21 / (3 / 5)) - 17"}
{"id": "countdown-heldout-000020", "source": "countdown", "nums": [2, 3, 6, 10], "target": 28, "question": "Using the numbers 2, 3, 6, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(2 - 6) * (3 - 10)"}
{"id": "countdown-heldout-000021", "source": "countdown", "nums": [3, 8, 10, 22], "target": 82, "question": "Using the numbers 3, 8, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(8 * (3 + 10)) - 22"}
{"id": "countdown-heldout-000022", "source": "countdown", "nums": [2, 3, 9, 18], "target": 99, "question": "Using the numbers 2, 3, 9, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "9 + (18 * (2 + 3))"}
{"id": "countdown-heldout-000023", "source": "countdown", "nums": [2, 3, 4, 23], "target": 11, "question": "Using the numbers 2, 3, 4, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "4 - ((2 - 23) / 3)"}
{"id": "countdown-heldout-000024", "source": "countdown", "nums": [8, 18, 20, 23], "target": 13, "question": "Using the numbers 8, 18, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "23 - (20 + (8 - 18))"}
{"id": "countdown-heldout-000025", "source": "countdown", "nums": [2, 2, 8, 20], "target": 12, "question": "Using the numbers 2, 2, 8, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(8 * (2 + 2)) - 20"}
{"id": "countdown-heldout-000026", "source": "countdown", "nums": [1, 14, 23, 24], "target": 60, "question": "Using the numbers 1, 14, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(23 + 24) - (1 - 14)"}
{"id": "countdown-heldout-000027", "source": "countdown", "nums": [2, 12, 17, 20], "target": 31, "question": "Using the numbers 2, 12, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(17 + 20) - (12 / 2)"}
{"id": "countdown-heldout-000028", "source": "countdown", "nums": [5, 10, 12, 15], "target": 95, "question": "Using the numbers 5, 10, 12, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(5 * (10 + 12)) - 15"}
{"id": "countdown-heldout-000029", "source": "countdown", "nums": [12, 19, 22, 23], "target": 14, "question": "Using the numbers 12, 19, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(22 + 23) - (12 + 19)"}
{"id": "countdown-heldout-000030", "source": "countdown", "nums": [17, 18, 24, 25], "target": 15, "question": "Using the numbers 17, 18, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "18 + (24 / (17 - 25))"}
{"id": "countdown-heldout-000031", "source": "countdown", "nums": [6, 14, 16, 16], "target": 44, "question": "Using the numbers 6, 14, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(6 + 16) * (16 - 14)"}
{"id": "countdown-heldout-000032", "source": "countdown", "nums": [2, 18, 19, 22], "target": 33, "question": "Using the numbers 2, 18, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(2 * 18) + (19 - 22)"}
{"id": "countdown-heldout-000033", "source": "countdown", "nums": [6, 10, 11, 23], "target": 27, "question": "Using the numbers 6, 10, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(10 * (11 - 6)) - 23"}
{"id": "countdown-heldout-000034", "source": "countdown", "nums": [4, 13, 14, 17], "target": 95, "question": "Using the numbers 4, 13, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(4 * 17) + (13 + 14)"}
{"id": "countdown-heldout-000035", "source": "countdown", "nums": [5, 6, 14, 21], "target": 17, "question": "Using the numbers 5, 6, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "21 - ((6 + 14) / 5)"}
{"id": "countdown-heldout-000036", "source": "countdown", "nums": [2, 4, 9, 10], "target": 69, "question": "Using the numbers 2, 4, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "9 + (10 * (2 + 4))"}
{"id": "countdown-heldout-000037", "source": "countdown", "nums": [7, 13, 20, 22], "target": 40, "question": "Using the numbers 7, 13, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(7 + 13) * (22 - 20)"}
{"id": "countdown-heldout-000038", "source": "countdown", "nums": [8, 10, 12, 21], "target": 25, "question": "Using the numbers 8, 10, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "21 - (8 / (10 - 12))"}
{"id": "countdown-heldout-000039", "source": "countdown", "nums": [1, 3, 5, 8], "target": 22, "question": "Using the numbers 1, 3, 5, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(3 * (1 + 8)) - 5"}
{"id": "countdown-heldout-000040", "source": "countdown", "nums": [1, 2, 3, 25], "target": 42, "question": "Using the numbers 1, 2, 3, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "2 * (25 - (1 + 3))"}
{"id": "countdown-heldout-000041", "source": "countdown", "nums": [13, 13, 16, 24], "target": 59, "question": "Using the numbers 13, 13, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(24 * (16 - 13)) - 13"}
{"id": "countdown-heldout-000042", "source": "countdown", "nums": [5, 11, 13, 21], "target": 38, "question": "Using the numbers 5, 11, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(11 * 13) - (5 * 21)"}
{"id": "countdown-heldout-000043", "source": "countdown", "nums": [10, 10, 11, 24], "target": 12, "question": "Using the numbers 10, 10, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "24 - (11 + (10 / 10))"}
{"id": "countdown-heldout-000044", "source": "countdown", "nums": [1, 16, 20, 22], "target": 89, "question": "Using the numbers 1, 16, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "1 - (22 * (16 - 20))"}
{"id": "countdown-heldout-000045", "source": "countdown", "nums": [3, 3, 11, 18], "target": 78, "question": "Using the numbers 3, 3, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "3 * (18 - (3 - 11))"}
{"id": "countdown-heldout-000046", "source": "countdown", "nums": [15, 15, 16, 19], "target": 76, "question": "Using the numbers 15, 15, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "16 - (15 * (15 - 19))"}
{"id": "countdown-heldout-000047", "source": "countdown", "nums": [10, 15, 17, 22], "target": 50, "question": "Using the numbers 10, 15, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "17 + (22 / (10 / 15))"}
{"id": "countdown-heldout-000048", "source": "countdown", "nums": [7, 11, 13, 19], "target": 52, "question": "Using the numbers 7, 11, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(7 + 19) * (13 - 11)"}
{"id": "countdown-heldout-000049", "source": "countdown", "nums": [2, 13, 14, 25], "target": 13, "question": "Using the numbers 2, 13, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(14 + 25) - (2 * 13)"}
{"id": "countdown-heldout-000050", "source": "countdown", "nums": [2, 5, 7, 10], "target": 41, "question": "Using the numbers 2, 5, 7, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(5 * 10) - (2 + 7)"}
{"id": "countdown-heldout-000051", "source": "countdown", "nums": [1, 2, 12, 21], "target": 26, "question": "Using the numbers 1, 2, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(12 / 2) - (1 - 21)"}
{"id": "countdown-heldout-000052", "source": "countdown", "nums": [1, 8, 15, 25], "target": 20, "question": "Using the numbers 1, 8, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "8 / (1 - (15 / 25))"}
{"id": "countdown-heldout-000053", "source": "countdown", "nums": [8, 9, 11, 23], "target": 44, "question": "Using the numbers 8, 9, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(9 + 23) / (8 / 11)"}
{"id": "countdown-heldout-000054", "source": "countdown", "nums": [1, 2, 8, 17], "target": 28, "question": "Using the numbers 1, 2, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(1 + 2) + (8 + 17)"}
{"id": "countdown-heldout-000055", "source": "countdown", "nums": [6, 6, 12, 20], "target": 88, "question": "Using the numbers 6, 6, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(6 * (6 + 12)) - 20"}
{"id": "countdown-heldout-000056", "source": "countdown", "nums": [11, 13, 19, 23], "target": 72, "question": "Using the numbers 11, 13, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(11 - 23) * (13 - 19)"}
{"id": "countdown-heldout-000057", "source": "countdown", "nums": [3, 6, 12, 23], "target": 31, "question": "Using the numbers 3, 6, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(3 * (6 + 12)) - 23"}
{"id": "countdown-heldout-000058", "source": "countdown", "nums": [5, 6, 19, 21], "target": 20, "question": "Using the numbers 5, 6, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "5 * ((6 + 19) - 21)"}
{"id": "countdown-heldout-000059", "source": "countdown", "nums": [9, 10, 14, 18], "target": 54, "question": "Using the numbers 9, 10, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(10 * 18) - (9 * 14)"}
{"id": "countdown-heldout-000060", "source": "countdown", "nums": [2, 5, 14, 22], "target": 21, "question": "Using the numbers 2, 5, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "5 - (2 * (14 - 22))"}
{"id": "countdown-heldout-000061", "source": "countdown", "nums": [4, 14, 19, 25], "target": 95, "question": "Using the numbers 4, 14, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(4 * 25) + (14 - 19)"}
{"id": "countdown-heldout-000062", "source": "countdown", "nums": [10, 17, 18, 21], "target": 10, "question": "Using the numbers 10, 17, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "21 - (18 + (10 - 17))"}
{"id": "countdown-heldout-000063", "source": "countdown", "nums": [6, 9, 13, 14], "target": 15, "question": "Using the numbers 6, 9, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(6 + 9) * (14 - 13)"}
{"id": "countdown-heldout-000064", "source": "countdown", "nums": [2, 19, 24, 24], "target": 27, "question": "Using the numbers 2, 19, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(24 + 24) - (2 + 19)"}
{"id": "countdown-heldout-000065", "source": "countdown", "nums": [2, 12, 22, 23], "target": 14, "question": "Using the numbers 2, 12, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(2 + 12) * (23 - 22)"}
{"id": "countdown-heldout-000066", "source": "countdown", "nums": [3, 19, 22, 23], "target": 17, "question": "Using the numbers 3, 19, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "23 - (22 + (3 - 19))"}
{"id": "countdown-heldout-000067", "source": "countdown", "nums": [13, 19, 22, 25], "target": 11, "question": "Using the numbers 13, 19, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(19 * 22) / (13 + 25)"}
{"id": "countdown-heldout-000068", "source": "countdown", "nums": [1, 3, 12, 25], "target": 19, "question": "Using the numbers 1, 3, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "25 + (12 / (1 - 3))"}
{"id": "countdown-heldout-000069", "source": "countdown", "nums": [2, 13, 20, 23], "target": 43, "question": "Using the numbers 2, 13, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(2 * (13 + 20)) - 23"}
{"id": "countdown-heldout-000070", "source": "countdown", "nums": [2, 5, 14, 22], "target": 16, "question": "Using the numbers 2, 5, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(2 * (5 + 14)) - 22"}
{"id": "countdown-heldout-000071", "source": "countdown", "nums": [5, 7, 14, 18], "target": 99, "question": "Using the numbers 5, 7, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(5 - 14) * (7 - 18)"}
{"id": "countdown-heldout-000072", "source": "countdown", "nums": [2, 5, 9, 25], "target": 31, "question": "Using the numbers 2, 5, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(2 - 5) + (9 + 25)"}
{"id": "countdown-heldout-000073", "source": "countdown", "nums": [7, 10, 18, 23], "target": 54, "question": "Using the numbers 7, 10, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(7 + 23) / (10 / 18)"}
{"id": "countdown-heldout-000074", "source": "countdown", "nums": [8, 15, 20, 22], "target": 65, "question": "Using the numbers 8, 15, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(8 + 15) + (20 + 22)"}
{"id": "countdown-heldout-000075", "source": "countdown", "nums": [4, 9, 11, 17], "target": 72, "question": "Using the numbers 4, 9, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "17 - (11 * (4 - 9))"}
{"id": "countdown-heldout-000076", "source": "countdown", "nums": [5, 6, 11, 11], "target": 74, "question": "Using the numbers 5, 6, 11, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(5 * (6 + 11)) - 11"}
{"id": "countdown-heldout-000077", "source": "countdown", "nums": [8, 10, 15, 24], "target": 85, "question": "Using the numbers 8, 10, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "8 * (10 + (15 / 24))"}
{"id": "countdown-heldout-000078", "source": "countdown", "nums": [3, 16, 23, 24], "target": 32, "question": "Using the numbers 3, 16, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "16 * ((3 + 23) - 24)"}
{"id": "countdown-heldout-000079", "source": "countdown", "nums": [1, 2, 9, 20], "target": 80, "question": "Using the numbers 1, 2, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(9 - 1) / (2 / 20)"}
{"id": "countdown-heldout-000080", "source": "countdown", "nums": [14, 16, 21, 25], "target": 76, "question": "Using the numbers 14, 16, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(14 + 16) + (21 + 25)"}
{"id": "countdown-heldout-000081", "source": "countdown", "nums": [14, 19, 21, 22], "target": 38, "question": "Using the numbers 14, 19, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(14 - 19) + (21 + 22)"}
{"id": "countdown-heldout-000082", "source": "countdown", "nums": [2, 8, 8, 25], "target": 52, "question": "Using the numbers 2, 8, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "2 * (25 + (8 / 8))"}
{"id": "countdown-heldout-000083", "source": "countdown", "nums": [3, 5, 11, 21], "target": 82, "question": "Using the numbers 3, 5, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "5 + (21 / (3 / 11))"}
{"id": "countdown-heldout-000084", "source": "countdown", "nums": [1, 10, 17, 23], "target": 15, "question": "Using the numbers 1, 10, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "23 - (17 + (1 - 10))"}
{"id": "countdown-heldout-000085", "source": "countdown", "nums": [5, 13, 19, 20], "target": 70, "question": "Using the numbers 5, 13, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "5 * (20 + (13 - 19))"}
{"id": "countdown-heldout-000086", "source": "countdown", "nums": [3, 10, 20, 23], "target": 30, "question": "Using the numbers 3, 10, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(20 + 23) - (3 + 10)"}
{"id": "countdown-heldout-000087", "source": "countdown", "nums": [1, 7, 21, 25], "target": 72, "question": "Using the numbers 1, 7, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(25 - 1) / (7 / 21)"}
{"id": "countdown-heldout-000088", "source": "countdown", "nums": [1, 6, 22, 24], "target": 33, "question": "Using the numbers 1, 6, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "24 / (1 - (6 / 22))"}
{"id": "countdown-heldout-000089", "source": "countdown", "nums": [12, 16, 23, 24], "target": 15, "question": "Using the numbers 12, 16, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "23 - ((12 * 16) / 24)"}
{"id": "countdown-heldout-000090", "source": "countdown", "nums": [3, 3, 22, 24], "target": 14, "question": "Using the numbers 3, 3, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "((3 * 22) - 24) / 3"}
{"id": "countdown-heldout-000091", "source": "countdown", "nums": [5, 8, 13, 19], "target": 33, "question": "Using the numbers 5, 8, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(13 + (8 * 19)) / 5"}
{"id": "countdown-heldout-000092", "source": "countdown", "nums": [3, 5, 8, 25], "target": 95, "question": "Using the numbers 3, 5, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(8 * (3 * 5)) - 25"}
{"id": "countdown-heldout-000093", "source": "countdown", "nums": [4, 18, 19, 24], "target": 31, "question": "Using the numbers 4, 18, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(18 + 19) - (24 / 4)"}
{"id": "countdown-heldout-000094", "source": "countdown", "nums": [13, 16, 17, 21], "target": 67, "question": "Using the numbers 13, 16, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(13 + 16) + (17 + 21)"}
{"id": "countdown-heldout-000095", "source": "countdown", "nums": [15, 21, 24, 25], "target": 13, "question": "Using the numbers 15, 21, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(24 + 25) - (15 + 21)"}
{"id": "countdown-heldout-000096", "source": "countdown", "nums": [7, 11, 14, 17], "target": 35, "question": "Using the numbers 7, 11, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(14 + 17) - (7 - 11)"}
{"id": "countdown-heldout-000097", "source": "countdown", "nums": [2, 3, 11, 25], "target": 78, "question": "Using the numbers 2, 3, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "2 * (25 + (3 + 11))"}
{"id": "countdown-heldout-000098", "source": "countdown", "nums": [7, 12, 13, 17], "target": 37, "question": "Using the numbers 7, 12, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(12 * 13) - (7 * 17)"}
{"id": "countdown-heldout-000099", "source": "countdown", "nums": [5, 12, 12, 13], "target": 13, "question": "Using the numbers 5, 12, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "13 + (5 * (12 - 12))"}
{"id": "countdown-heldout-000100", "source": "countdown", "nums": [4, 6, 7, 23], "target": 11, "question": "Using the numbers 4, 6, 7, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(4 * 7) + (6 - 23)"}
{"id": "countdown-heldout-000101", "source": "countdown", "nums": [4, 9, 17, 23], "target": 25, "question": "Using the numbers 4, 9, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "23 - ((9 - 17) / 4)"}
{"id": "countdown-heldout-000102", "source": "countdown", "nums": [2, 7, 21, 25], "target": 57, "question": "Using the numbers 2, 7, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "21 - (2 * (7 - 25))"}
{"id": "countdown-heldout-000103", "source": "countdown", "nums": [2, 4, 9, 20], "target": 50, "question": "Using the numbers 2, 4, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(9 - 4) / (2 / 20)"}
{"id": "countdown-heldout-000104", "source": "countdown", "nums": [3, 9, 14, 20], "target": 40, "question": "Using the numbers 3, 9, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "20 * (14 - (3 + 9))"}
{"id": "countdown-heldout-000105", "source": "countdown", "nums": [2, 10, 16, 18], "target": 80, "question": "Using the numbers 2, 10, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "16 / (2 - (18 / 10))"}
{"id": "countdown-heldout-000106", "source": "countdown", "nums": [2, 9, 12, 16], "target": 39, "question": "Using the numbers 2, 9, 12, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 + 9) + (12 + 16)"}
{"id": "countdown-heldout-000107", "source": "countdown", "nums": [7, 9, 13, 17], "target": 32, "question": "Using the numbers 7, 9, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(13 + 17) - (7 - 9)"}
{"id": "countdown-heldout-000108", "source": "countdown", "nums": [2, 10, 13, 15], "target": 76, "question": "Using the numbers 2, 10, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "2 * (15 + (10 + 13))"}
{"id": "countdown-heldout-000109", "source": "countdown", "nums": [4, 7, 19, 21], "target": 75, "question": "Using the numbers 4, 7, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "19 - (4 * (7 - 21))"}
{"id": "countdown-heldout-000110", "source": "countdown", "nums": [9, 10, 17, 18], "target": 80, "question": "Using the numbers 9, 10, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "10 * ((9 + 17) - 18)"}
{"id": "countdown-heldout-000111", "source": "countdown", "nums": [1, 2, 8, 10], "target": 54, "question": "Using the numbers 1, 2, 8, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(1 + 2) * (8 + 10)"}
{"id": "countdown-heldout-000112", "source": "countdown", "nums": [4, 17, 18, 20], "target": 73, "question": "Using the numbers 4, 17, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(20 / (4 / 18)) - 17"}
{"id": "countdown-heldout-000113", "source": "countdown", "nums": [3, 4, 12, 20], "target": 19, "question": "Using the numbers 3, 4, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "20 - (12 / (3 * 4))"}
{"id": "countdown-heldout-000114", "source": "countdown", "nums": [9, 19, 21, 24], "target": 96, "question": "Using the numbers 9, 19, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(21 * (24 - 19)) - 9"}
{"id": "countdown-heldout-000115", "source": "countdown", "nums": [2, 6, 18, 20], "target": 32, "question": "Using the numbers 2, 6, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "20 + ((6 + 18) / 2)"}
{"id": "countdown-heldout-000116", "source": "countdown", "nums": [2, 7, 16, 21], "target": 38, "question": "Using the numbers 2, 7, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "2 * (16 + (21 / 7))"}
{"id": "countdown-heldout-000117", "source": "countdown", "nums": [8, 9, 18, 19], "target": 54, "question": "Using the numbers 8, 9, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(8 + 9) + (18 + 19)"}
{"id": "countdown-heldout-000118", "source": "countdown", "nums": [2, 6, 8, 25], "target": 47, "question": "Using the numbers 2, 6, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(2 * 8) + (6 + 25)"}
{"id": "countdown-heldout-000119", "source": "countdown", "nums": [2, 7, 10, 24], "target": 89, "question": "Using the numbers 2, 7, 10, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(10 + (7 * 24)) / 2"}
{"id": "countdown-heldout-000120", "source": "countdown", "nums": [10, 12, 17, 23], "target": 25, "question": "Using the numbers 10, 12, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "23 - (10 / (12 - 17))"}
{"id": "countdown-heldout-000121", "source": "countdown", "nums": [1, 12, 21, 24], "target": 16, "question": "Using the numbers 1, 12, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(1 + 12) - (21 - 24)"}
{"id": "countdown-heldout-000122", "source": "countdown", "nums": [12, 14, 23, 25], "target": 13, "question": "Using the numbers 12, 14, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(12 + 14) / (25 - 23)"}
{"id": "countdown-heldout-000123", "source": "countdown", "nums": [6, 6, 11, 13], "target": 23, "question": "Using the numbers 6, 6, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(11 + 13) - (6 / 6)"}
{"id": "countdown-heldout-000124", "source": "countdown", "nums": [12, 13, 19, 22], "target": 66, "question": "Using the numbers 12, 13, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(12 + 13) + (19 + 22)"}
{"id": "countdown-heldout-000125", "source": "countdown", "nums": [4, 23, 23, 23], "target": 88, "question": "Using the numbers 4, 23, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "4 * (23 - (23 / 23))"}
{"id": "countdown-heldout-000126", "source": "countdown", "nums": [1, 12, 14, 23], "target": 50, "question": "Using the numbers 1, 12, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(1 + 12) + (14 + 23)"}
{"id": "countdown-heldout-000127", "source": "countdown", "nums": [2, 9, 13, 18], "target": 45, "question": "Using the numbers 2, 9, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "18 * (9 - (13 / 2))"}
{"id": "countdown-heldout-000128", "source": "countdown", "nums": [3, 3, 6, 25], "target": 48, "question": "Using the numbers 3, 3, 6, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "3 * (25 - (3 + 6))"}
{"id": "countdown-heldout-000129", "source": "countdown", "nums": [8, 11, 13, 20], "target": 80, "question": "Using the numbers 8, 11, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(8 * 20) / (13 - 11)"}
{"id": "countdown-heldout-000130", "source": "countdown", "nums": [4, 9, 13, 22], "target": 99, "question": "Using the numbers 4, 9, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(4 - 22) + (9 * 13)"}
{"id": "countdown-heldout-000131", "source": "countdown", "nums": [8, 20, 22, 22], "target": 33, "question": "Using the numbers 8, 20, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(22 / (8 / 20)) - 22"}
{"id": "countdown-heldout-000132", "source": "countdown", "nums": [10, 13, 18, 20], "target": 34, "question": "Using the numbers 10, 13, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(13 * 18) - (10 * 20)"}
{"id": "countdown-heldout-000133", "source": "countdown", "nums": [8, 14, 24, 25], "target": 89, "question": "Using the numbers 8, 14, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "14 + (25 / (8 / 24))"}
{"id": "countdown-heldout-000134", "source": "countdown", "nums": [1, 9, 11, 14], "target": 12, "question": "Using the numbers 1, 9, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(1 * 9) - (11 - 14)"}
{"id": "countdown-heldout-000135", "source": "countdown", "nums": [6, 7, 11, 12], "target": 13, "question": "Using the numbers 6, 7, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(6 + 7) * (12 - 11)"}
{"id": "countdown-heldout-000136", "source": "countdown", "nums": [5, 8, 20, 24], "target": 65, "question": "Using the numbers 5, 8, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "5 + (24 / (8 / 20))"}
{"id": "countdown-heldout-000137", "source": "countdown", "nums": [5, 8, 10, 12], "target": 30, "question": "Using the numbers 5, 8, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(5 * 10) - (8 + 12)"}
{"id": "countdown-heldout-000138", "source": "countdown", "nums": [3, 7, 13, 16], "target": 67, "question": "Using the numbers 3, 7, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "((13 * 16) - 7) / 3"}
{"id": "countdown-heldout-000139", "source": "countdown", "nums": [2, 2, 5, 19], "target": 30, "question": "Using the numbers 2, 2, 5, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "2 - (2 * (5 - 19))"}
{"id": "countdown-heldout-000140", "source": "countdown", "nums": [4, 10, 13, 18], "target": 72, "question": "Using the numbers 4, 10, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(4 - 13) * (10 - 18)"}
{"id": "countdown-heldout-000141", "source": "countdown", "nums": [9, 9, 9, 11], "target": 100, "question": "Using the numbers 9, 9, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(9 / 9) + (9 * 11)"}
{"id": "countdown-heldout-000142", "source": "countdown", "nums": [2, 8, 16, 20], "target": 26, "question": "Using the numbers 2, 8, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(16 + 20) - (2 + 8)"}
{"id": "countdown-heldout-000143", "source": "countdown", "nums": [2, 3, 12, 20], "target": 96, "question": "Using the numbers 2, 3, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "2 * ((3 * 20) - 12)"}
{"id": "countdown-heldout-000144", "source": "countdown", "nums": [10, 22, 23, 25], "target": 36, "question": "Using the numbers 10, 22, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(10 - 22) + (23 + 25)"}
{"id": "countdown-heldout-000145", "source": "countdown", "nums": [1, 2, 10, 19], "target": 24, "question": "Using the numbers 1, 2, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "19 + (10 / (1 * 2))"}
{"id": "countdown-heldout-000146", "source": "countdown", "nums": [5, 5, 19, 24], "target": 94, "question": "Using the numbers 5, 5, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "24 - (5 * (5 - 19))"}
{"id": "countdown-heldout-000147", "source": "countdown", "nums": [5, 8, 19, 25], "target": 87, "question": "Using the numbers 5, 8, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(25 / (5 / 19)) - 8"}
{"id": "countdown-heldout-000148", "source": "countdown", "nums": [5, 8, 14, 16], "target": 16, "question": "Using the numbers 5, 8, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "16 * (14 - (5 + 8))"}
{"id": "countdown-heldout-000149", "source": "countdown", "nums": [1, 4, 17, 22], "target": 70, "question": "Using the numbers 1, 4, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(4 * 22) - (1 + 17)"}
{"id": "countdown-heldout-000150", "source": "countdown", "nums": [3, 4, 18, 20], "target": 36, "question": "Using the numbers 3, 4, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "18 * ((20 / 4) - 3)"}
{"id": "countdown-heldout-000151", "source": "countdown", "nums": [1, 10, 15, 16], "target": 23, "question": "Using the numbers 1, 10, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(16 / (10 / 15)) - 1"}
{"id": "countdown-heldout-000152", "source": "countdown", "nums": [1, 2, 4, 8], "target": 15, "question": "Using the numbers 1, 2, 4, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(1 + 2) + (4 + 8)"}
{"id": "countdown-heldout-000153", "source": "countdown", "nums": [2, 10, 22, 25], "target": 23, "question": "Using the numbers 2, 10, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(2 * 10) - (22 - 25)"}
{"id": "countdown-heldout-000154", "source": "countdown", "nums": [3, 6, 8, 13], "target": 31, "question": "Using the numbers 3, 6, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(3 * 8) - (6 - 13)"}
{"id": "countdown-heldout-000155", "source": "countdown", "nums": [1, 3, 10, 11], "target": 44, "question": "Using the numbers 1, 3, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(1 + 10) + (3 * 11)"}
{"id": "countdown-heldout-000156", "source": "countdown", "nums": [9, 13, 16, 25], "target": 75, "question": "Using the numbers 9, 13, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(9 * 25) / (16 - 13)"}
{"id": "countdown-heldout-000157", "source": "countdown", "nums": [2, 12, 16, 18], "target": 13, "question": "Using the numbers 2, 12, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "16 - (18 * (2 / 12))"}
{"id": "countdown-heldout-000158", "source": "countdown", "nums": [13, 22, 23, 25], "target": 30, "question": "Using the numbers 13, 22, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(13 - 23) * (22 - 25)"}
{"id": "countdown-heldout-000159", "source": "countdown", "nums": [9, 12, 19, 24], "target": 47, "question": "Using the numbers 9, 12, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "9 + (24 / (12 / 19))"}
{"id": "countdown-heldout-000160", "source": "countdown", "nums": [1, 2, 7, 17], "target": 90, "question": "Using the numbers 1, 2, 7, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(1 - 7) * (2 - 17)"}
{"id": "countdown-heldout-000161", "source": "countdown", "nums": [5, 11, 16, 24], "target": 67, "question": "Using the numbers 5, 11, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(5 * 16) + (11 - 24)"}
{"id": "countdown-heldout-000162", "source": "countdown", "nums": [2, 5, 16, 25], "target": 78, "question": "Using the numbers 2, 5, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(25 / (5 / 16)) - 2"}
{"id": "countdown-heldout-000163", "source": "countdown", "nums": [3, 9, 12, 23], "target": 62, "question": "Using the numbers 3, 9, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(3 * 9) + (12 + 23)"}
{"id": "countdown-heldout-000164", "source": "countdown", "nums": [2, 3, 16, 21], "target": 94, "question": "Using the numbers 2, 3, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "2 * ((3 * 21) - 16)"}
{"id": "countdown-heldout-000165", "source": "countdown", "nums": [2, 2, 14, 21], "target": 56, "question": "Using the numbers 2, 2, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "2 * ((2 * 21) - 14)"}
{"id": "countdown-heldout-000166", "source": "countdown", "nums": [6, 11, 12, 15], "target": 96, "question": "Using the numbers 6, 11, 12, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "6 * (15 - (11 - 12))"}
{"id": "countdown-heldout-000167", "source": "countdown", "nums": [2, 17, 19, 21], "target": 95, "question": "Using the numbers 2, 17, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "19 + (2 * (17 + 21))"}
{"id": "countdown-heldout-000168", "source": "countdown", "nums": [12, 20, 21, 24], "target": 59, "question": "Using the numbers 12, 20, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "24 + (21 / (12 / 20))"}
{"id": "countdown-heldout-000169", "source": "countdown", "nums": [8, 8, 21, 25], "target": 46, "question": "Using the numbers 8, 8, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(8 - 8) + (21 + 25)"}
{"id": "countdown-heldout-000170", "source": "countdown", "nums": [6, 7, 12, 25], "target": 38, "question": "Using the numbers 6, 7, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(12 + 25) - (6 - 7)"}
{"id": "countdown-heldout-000171", "source": "countdown", "nums": [2, 4, 12, 24], "target": 96, "question": "Using the numbers 2, 4, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "24 + (12 * (2 + 4))"}
{"id": "countdown-heldout-000172", "source": "countdown", "nums": [4, 4, 11, 13], "target": 73, "question": "Using the numbers 4, 4, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "13 + (4 * (4 + 11))"}
{"id": "countdown-heldout-000173", "source": "countdown", "nums": [2, 16, 20, 24], "target": 23, "question": "Using the numbers 2, 16, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "20 + (24 * (2 / 16))"}
{"id": "countdown-heldout-000174", "source": "countdown", "nums": [3, 6, 7, 14], "target": 100, "question": "Using the numbers 3, 6, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(6 / 3) + (7 * 14)"}
{"id": "countdown-heldout-000175", "source": "countdown", "nums": [8, 8, 9, 16], "target": 36, "question": "Using the numbers 8, 8, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(8 * 8) * (9 / 16)"}
{"id": "countdown-heldout-000176", "source": "countdown", "nums": [6, 8, 11, 12], "target": 37, "question": "Using the numbers 6, 8, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(6 + 8) + (11 + 12)"}
{"id": "countdown-heldout-000177", "source": "countdown", "nums": [4, 7, 17, 18], "target": 10, "question": "Using the numbers 4, 7, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(4 + 7) + (17 - 18)"}
{"id": "countdown-heldout-000178", "source": "countdown", "nums": [2, 11, 22, 23], "target": 33, "question": "Using the numbers 2, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "11 * (23 + (2 - 22))"}
{"id": "countdown-heldout-000179", "source": "countdown", "nums": [2, 6, 17, 24], "target": 30, "question": "Using the numbers 2, 6, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "6 * (24 - (2 + 17))"}
{"id": "countdown-heldout-000180", "source": "countdown", "nums": [3, 9, 17, 23], "target": 28, "question": "Using the numbers 3, 9, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(17 + 23) - (3 + 9)"}
{"id": "countdown-heldout-000181", "source": "countdown", "nums": [2, 6, 11, 17], "target": 69, "question": "Using the numbers 2, 6, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "6 * (17 - (11 / 2))"}
{"id": "countdown-heldout-000182", "source": "countdown", "nums": [2, 4, 5, 13], "target": 15, "question": "Using the numbers 2, 4, 5, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(4 * (2 + 5)) - 13"}
{"id": "countdown-heldout-000183", "source": "countdown", "nums": [2, 4, 8, 12], "target": 98, "question": "Using the numbers 2, 4, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(8 * 12) - (2 - 4)"}
{"id": "countdown-heldout-000184", "source": "countdown", "nums": [10, 15, 18, 23], "target": 36, "question": "Using the numbers 10, 15, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "18 * ((10 + 15) - 23)"}
{"id": "countdown-heldout-000185", "source": "countdown", "nums": [3, 3, 12, 23], "target": 89, "question": "Using the numbers 3, 3, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(23 / (3 / 12)) - 3"}
{"id": "countdown-heldout-000186", "source": "countdown", "nums": [6, 11, 12, 18], "target": 44, "question": "Using the numbers 6, 11, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(6 * 11) * (12 / 18)"}
{"id": "countdown-heldout-000187", "source": "countdown", "nums": [6, 13, 19, 21], "target": 66, "question": "Using the numbers 6, 13, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "6 * ((13 + 19) - 21)"}
{"id": "countdown-heldout-000188", "source": "countdown", "nums": [2, 4, 4, 20], "target": 60, "question": "Using the numbers 2, 4, 4, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "20 * (2 + (4 / 4))"}
{"id": "countdown-heldout-000189", "source": "countdown", "nums": [1, 3, 5, 13], "target": 24, "question": "Using the numbers 1, 3, 5, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(1 * 3) * (13 - 5)"}
{"id": "countdown-heldout-000190", "source": "countdown", "nums": [4, 8, 10, 18], "target": 13, "question": "Using the numbers 4, 8, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "18 - (10 * (4 / 8))"}
{"id": "countdown-heldout-000191", "source": "countdown", "nums": [2, 8, 19, 21], "target": 75, "question": "Using the numbers 2, 8, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "21 + (2 * (8 + 19))"}
{"id": "countdown-heldout-000192", "source": "countdown", "nums": [1, 1, 1, 19], "target": 17, "question": "Using the numbers 1, 1, 1, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(1 * 19) - (1 + 1)"}
{"id": "countdown-heldout-000193", "source": "countdown", "nums": [13, 17, 17, 25], "target": 43, "question": "Using the numbers 13, 17, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(17 * (17 - 13)) - 25"}
{"id": "countdown-heldout-000194", "source": "countdown", "nums": [8, 15, 20, 25], "target": 75, "question": "Using the numbers 8, 15, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "25 * ((8 + 15) - 20)"}
{"id": "countdown-heldout-000195", "source": "countdown", "nums": [1, 7, 21, 24], "target": 75, "question": "Using the numbers 1, 7, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(1 + 24) / (7 / 21)"}
{"id": "countdown-heldout-000196", "source": "countdown", "nums": [1, 7, 8, 9], "target": 73, "question": "Using the numbers 1, 7, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "9 + (8 * (1 + 7))"}
{"id": "countdown-heldout-000197", "source": "countdown", "nums": [12, 20, 21, 24], "target": 75, "question": "Using the numbers 12, 20, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(21 + 24) / (12 / 20)"}
{"id": "countdown-heldout-000198", "source": "countdown", "nums": [5, 11, 13, 18], "target": 95, "question": "Using the numbers 5, 11, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(18 * (11 - 5)) - 13"}
{"id": "countdown-heldout-000199", "source": "countdown", "nums": [2, 2, 10, 22], "target": 11, "question": "Using the numbers 2, 2, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "22 - (10 + (2 / 2))"}
{"id": "countdown-heldout-000200", "source": "countdown", "nums": [9, 13, 13, 16], "target": 88, "question": "Using the numbers 9, 13, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(9 * 13) - (13 + 16)"}
{"id": "countdown-heldout-000201", "source": "countdown", "nums": [2, 4, 16, 16], "target": 10, "question": "Using the numbers 2, 4, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "16 + ((4 - 16) / 2)"}
{"id": "countdown-heldout-000202", "source": "countdown", "nums": [13, 19, 20, 23], "target": 28, "question": "Using the numbers 13, 19, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(13 - 20) * (19 - 23)"}
{"id": "countdown-heldout-000203", "source": "countdown", "nums": [4, 12, 15, 24], "target": 84, "question": "Using the numbers 4, 12, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(4 + 24) * (15 - 12)"}
{"id": "countdown-heldout-000204", "source": "countdown", "nums": [3, 5, 10, 21], "target": 74, "question": "Using the numbers 3, 5, 10, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(3 + 21) + (5 * 10)"}
{"id": "countdown-heldout-000205", "source": "countdown", "nums": [2, 8, 11, 24], "target": 80, "question": "Using the numbers 2, 8, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(8 * (2 + 11)) - 24"}
{"id": "countdown-heldout-000206", "source": "countdown", "nums": [2, 6, 11, 17], "target": 81, "question": "Using the numbers 2, 6, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(6 * 11) - (2 - 17)"}
{"id": "countdown-heldout-000207", "source": "countdown", "nums": [2, 3, 4, 19], "target": 48, "question": "Using the numbers 2, 3, 4, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "4 + (2 * (3 + 19))"}
{"id": "countdown-heldout-000208", "source": "countdown", "nums": [1, 4, 6, 22], "target": 31, "question": "Using the numbers 1, 4, 6, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(6 + 22) - (1 - 4)"}
{"id": "countdown-heldout-000209", "source": "countdown", "nums": [20, 22, 24, 25], "target": 86, "question": "Using the numbers 20, 22, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(22 * (25 - 20)) - 24"}
{"id": "countdown-heldout-000210", "source": "countdown", "nums": [14, 15, 21, 23], "target": 31, "question": "Using the numbers 14, 15, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(14 + 15) - (21 - 23)"}
{"id": "countdown-heldout-000211", "source": "countdown", "nums": [2, 6, 12, 21], "target": 24, "question": "Using the numbers 2, 6, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "21 - (12 / (2 - 6))"}
{"id": "countdown-heldout-000212", "source": "countdown", "nums": [3, 9, 11, 14], "target": 93, "question": "Using the numbers 3, 9, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(9 * 14) - (3 * 11)"}
{"id": "countdown-heldout-000213", "source": "countdown", "nums": [1, 11, 18, 22], "target": 40, "question": "Using the numbers 1, 11, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(1 - 11) * (18 - 22)"}
{"id": "countdown-heldout-000214", "source": "countdown", "nums": [2, 2, 4, 10], "target": 44, "question": "Using the numbers 2, 2, 4, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(2 + 2) + (4 * 10)"}
{"id": "countdown-heldout-000215", "source": "countdown", "nums": [2, 4, 13, 18], "target": 51, "question": "Using the numbers 2, 4, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(4 * (18 - 2)) - 13"}
{"id": "countdown-heldout-000216", "source": "countdown", "nums": [2, 8, 23, 24], "target": 86, "question": "Using the numbers 2, 8, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "24 + (2 * (8 + 23))"}
{"id": "countdown-heldout-000217", "source": "countdown", "nums": [2, 6, 12, 19], "target": 40, "question": "Using the numbers 2, 6, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(2 * 19) + (12 / 6)"}
{"id": "countdown-heldout-000218", "source": "countdown", "nums": [11, 15, 23, 24], "target": 27, "question": "Using the numbers 11, 15, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(11 + 15) - (23 - 24)"}
{"id": "countdown-heldout-000219", "source": "countdown", "nums": [1, 4, 14, 19], "target": 30, "question": "Using the numbers 1, 4, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(1 - 4) + (14 + 19)"}
{"id": "countdown-heldout-000220", "source": "countdown", "nums": [3, 5, 21, 22], "target": 16, "question": "Using the numbers 3, 5, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(3 * 5) - (21 - 22)"}
{"id": "countdown-heldout-000221", "source": "countdown", "nums": [6, 7, 14, 24], "target": 30, "question": "Using the numbers 6, 7, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "7 * (6 - (24 / 14))"}
{"id": "countdown-heldout-000222", "source": "countdown", "nums": [2, 4, 8, 13], "target": 22, "question": "Using the numbers 2, 4, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(2 * 13) + (4 - 8)"}
{"id": "countdown-heldout-000223", "source": "countdown", "nums": [4, 8, 12, 22], "target": 28, "question": "Using the numbers 4, 8, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "22 + (12 * (4 / 8))"}
{"id": "countdown-heldout-000224", "source": "countdown", "nums": [2, 14, 17, 18], "target": 30, "question": "Using the numbers 2, 14, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(2 * 17) + (14 - 18)"}
{"id": "countdown-heldout-000225", "source": "countdown", "nums": [2, 6, 19, 23], "target": 79, "question": "Using the numbers 2, 6, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "(6 * (19 - 2)) - 23"}
{"id": "countdown-heldout-000226", "source": "countdown", "nums": [2, 3, 3, 5], "target": 32, "question": "Using the numbers 2, 3, 3, 5 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "2 + (5 * (3 + 3))"}
{"id": "countdown-heldout-000227", "source": "countdown", "nums": [12, 17, 20, 25], "target": 64, "question": "Using the numbers 12, 17, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(12 - 20) * (17 - 25)"}
{"id": "countdown-heldout-000228", "source": "countdown", "nums": [3, 4, 13, 24], "target": 100, "question": "Using the numbers 3, 4, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(24 / (3 / 13)) - 4"}
{"id": "countdown-heldout-000229", "source": "countdown", "nums": [6, 8, 11, 17], "target": 54, "question": "Using the numbers 6, 8, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(6 * 8) - (11 - 17)"}
{"id": "countdown-heldout-000230", "source": "countdown", "nums": [13, 15, 21, 23], "target": 22, "question": "Using the numbers 13, 15, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(21 + 23) / (15 - 13)"}
{"id": "countdown-heldout-000231", "source": "countdown", "nums": [7, 12, 12, 24], "target": 21, "question": "Using the numbers 7, 12, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(7 + 12) + (24 / 12)"}
{"id": "countdown-heldout-000232", "source": "countdown", "nums": [17, 18, 19, 21], "target": 91, "question": "Using the numbers 17, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "19 - (18 * (17 - 21))"}
{"id": "countdown-heldout-000233", "source": "countdown", "nums": [6, 9, 9, 19], "target": 66, "question": "Using the numbers 6, 9, 9, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "9 - (19 * (6 - 9))"}
{"id": "countdown-heldout-000234", "source": "countdown", "nums": [5, 6, 15, 21], "target": 74, "question": "Using the numbers 5, 6, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(5 - 21) + (6 * 15)"}
{"id": "countdown-heldout-000235", "source": "countdown", "nums": [1, 13, 14, 19], "target": 19, "question": "Using the numbers 1, 13, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(14 + 19) - (1 + 13)"}
{"id": "countdown-heldout-000236", "source": "countdown", "nums": [5, 16, 20, 23], "target": 27, "question": "Using the numbers 5, 16, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "23 + ((5 * 16) / 20)"}
{"id": "countdown-heldout-000237", "source": "countdown", "nums": [7, 8, 12, 14], "target": 23, "question": "Using the numbers 7, 8, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "7 - (8 * (12 - 14))"}
{"id": "countdown-heldout-000238", "source": "countdown", "nums": [1, 1, 8, 14], "target": 44, "question": "Using the numbers 1, 1, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(1 + 1) * (8 + 14)"}
{"id": "countdown-heldout-000239", "source": "countdown", "nums": [2, 3, 6, 7], "target": 13, "question": "Using the numbers 2, 3, 6, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "7 - (6 * (2 - 3))"}
{"id": "countdown-heldout-000240", "source": "countdown", "nums": [4, 5, 8, 9], "target": 72, "question": "Using the numbers 4, 5, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(5 - 4) * (8 * 9)"}
{"id": "countdown-heldout-000241", "source": "countdown", "nums": [17, 20, 21, 23], "target": 19, "question": "Using the numbers 17, 20, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(23 + (17 * 21)) / 20"}
{"id": "countdown-heldout-000242", "source": "countdown", "nums": [3, 14, 17, 21], "target": 15, "question": "Using the numbers 3, 14, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "21 - (17 + (3 - 14))"}
{"id": "countdown-heldout-000243", "source": "countdown", "nums": [4, 6, 10, 15], "target": 33, "question": "Using the numbers 4, 6, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "6 * (4 + (15 / 10))"}
{"id": "countdown-heldout-000244", "source": "countdown", "nums": [7, 12, 21, 22], "target": 89, "question": "Using the numbers 7, 12, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(22 * (12 - 7)) - 21"}
{"id": "countdown-heldout-000245", "source": "countdown", "nums": [5, 7, 19, 23], "target": 54, "question": "Using the numbers 5, 7, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(5 + 7) + (19 + 23)"}
{"id": "countdown-heldout-000246", "source": "countdown", "nums": [6, 10, 11, 19], "target": 85, "question": "Using the numbers 6, 10, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(10 * 11) - (6 + 19)"}
{"id": "countdown-heldout-000247", "source": "countdown", "nums": [6, 12, 15, 16], "target": 39, "question": "Using the numbers 6, 12, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "15 - (6 * (12 - 16))"}
{"id": "countdown-heldout-000248", "source": "countdown", "nums": [3, 6, 8, 13], "target": 27, "question": "Using the numbers 3, 6, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(6 * (13 - 8)) - 3"}
{"id": "countdown-heldout-000249", "source": "countdown", "nums": [8, 11, 13, 24], "target": 30, "question": "Using the numbers 8, 11, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(8 + 11) - (13 - 24)"}
{"id": "countdown-heldout-000250", "source": "countdown", "nums": [10, 15, 16, 17], "target": 28, "question": "Using the numbers 10, 15, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(10 - 15) + (16 + 17)"}
{"id": "countdown-heldout-000251", "source": "countdown", "nums": [13, 13, 17, 21], "target": 38, "question": "Using the numbers 13, 13, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(13 - 13) + (17 + 21)"}
{"id": "countdown-heldout-000252", "source": "countdown", "nums": [7, 8, 11, 13], "target": 37, "question": "Using the numbers 7, 8, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(8 * (13 - 7)) - 11"}
{"id": "countdown-heldout-000253", "source": "countdown", "nums": [6, 6, 23, 24], "target": 42, "question": "Using the numbers 6, 6, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "6 * (24 + (6 - 23))"}
{"id": "countdown-heldout-000254", "source": "countdown", "nums": [13, 15, 16, 20], "target": 47, "question": "Using the numbers 13, 15, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(15 * (20 - 16)) - 13"}
{"id": "countdown-heldout-000255", "source": "countdown", "nums": [2, 3, 10, 23], "target": 25, "question": "Using the numbers 2, 3, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "23 + (10 / (2 + 3))"}
{"id": "countdown-heldout-000256", "source": "countdown", "nums": [4, 8, 18, 24], "target": 32, "question": "Using the numbers 4, 8, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(8 + 18) + (24 / 4)"}
{"id": "countdown-heldout-000257", "source": "countdown", "nums": [2, 2, 12, 20], "target": 24, "question": "Using the numbers 2, 2, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(2 + 12) + (20 / 2)"}
{"id": "countdown-heldout-000258", "source": "countdown", "nums": [6, 9, 9, 23], "target": 18, "question": "Using the numbers 6, 9, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(9 / 9) - (6 - 23)"}
{"id": "countdown-heldout-000259", "source": "countdown", "nums": [1, 3, 4, 23], "target": 99, "question": "Using the numbers 1, 3, 4, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "3 + (4 * (1 + 23))"}
{"id": "countdown-heldout-000260", "source": "countdown", "nums": [3, 4, 15, 18], "target": 94, "question": "Using the numbers 3, 4, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "4 + (18 / (3 / 15))"}
{"id": "countdown-heldout-000261", "source": "countdown", "nums": [6, 9, 12, 14], "target": 32, "question": "Using the numbers 6, 9, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "14 + (12 / (6 / 9))"}
{"id": "countdown-heldout-000262", "source": "countdown", "nums": [1, 11, 23, 25], "target": 50, "question": "Using the numbers 1, 11, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(23 - 1) / (11 / 25)"}
{"id": "countdown-heldout-000263", "source": "countdown", "nums": [7, 11, 21, 24], "target": 27, "question": "Using the numbers 7, 11, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(21 + 24) - (7 + 11)"}
{"id": "countdown-heldout-000264", "source": "countdown", "nums": [4, 7, 15, 24], "target": 23, "question": "Using the numbers 4, 7, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "15 - (24 / (4 - 7))"}
{"id": "countdown-heldout-000265", "source": "countdown", "nums": [5, 8, 17, 20], "target": 23, "question": "Using the numbers 5, 8, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "8 - (5 * (17 - 20))"}
{"id": "countdown-heldout-000266", "source": "countdown", "nums": [1, 3, 6, 22], "target": 88, "question": "Using the numbers 1, 3, 6, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "22 * (6 + (1 - 3))"}
{"id": "countdown-heldout-000267", "source": "countdown", "nums": [4, 7, 11, 14], "target": 19, "question": "Using the numbers 4, 7, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "11 + (14 * (4 / 7))"}
{"id": "countdown-heldout-000268", "source": "countdown", "nums": [6, 7, 15, 19], "target": 13, "question": "Using the numbers 6, 7, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "15 + ((7 - 19) / 6)"}
{"id": "countdown-heldout-000269", "source": "countdown", "nums": [12, 16, 16, 25], "target": 92, "question": "Using the numbers 12, 16, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(12 * (25 - 16)) - 16"}
{"id": "countdown-heldout-000270", "source": "countdown", "nums": [8, 14, 16, 20], "target": 28, "question": "Using the numbers 8, 14, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(8 * 14) / (20 - 16)"}
{"id": "countdown-heldout-000271", "source": "countdown", "nums": [10, 14, 16, 24], "target": 28, "question": "Using the numbers 10, 14, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "24 - (16 / (10 - 14))"}
{"id": "countdown-heldout-000272", "source": "countdown", "nums": [3, 6, 13, 21], "target": 87, "question": "Using the numbers 3, 6, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(6 * 21) - (3 * 13)"}
{"id": "countdown-heldout-000273", "source": "countdown", "nums": [2, 4, 7, 7], "target": 79, "question": "Using the numbers 2, 4, 7, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "2 + (7 * (4 + 7))"}
{"id": "countdown-heldout-000274", "source": "countdown", "nums": [7, 11, 15, 17], "target": 14, "question": "Using the numbers 7, 11, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(15 + 17) - (7 + 11)"}
{"id": "countdown-heldout-000275", "source": "countdown", "nums": [14, 15, 22, 24], "target": 58, "question": "Using the numbers 14, 15, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(14 + 15) * (24 - 22)"}
{"id": "countdown-heldout-000276", "source": "countdown", "nums": [2, 3, 8, 17], "target": 10, "question": "Using the numbers 2, 3, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "17 - (8 + (2 - 3))"}
{"id": "countdown-heldout-000277", "source": "countdown", "nums": [19, 21, 22, 25], "target": 42, "question": "Using the numbers 19, 21, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(19 + 25) * (21 / 22)"}
{"id": "countdown-heldout-000278", "source": "countdown", "nums": [5, 10, 17, 23], "target": 97, "question": "Using the numbers 5, 10, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(10 * (17 - 5)) - 23"}
{"id": "countdown-heldout-000279", "source": "countdown", "nums": [8, 9, 12, 25], "target": 44, "question": "Using the numbers 8, 9, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(8 + 25) / (9 / 12)"}
{"id": "countdown-heldout-000280", "source": "countdown", "nums": [6, 7, 17, 22], "target": 73, "question": "Using the numbers 6, 7, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(6 * 17) - (7 + 22)"}
{"id": "countdown-heldout-000281", "source": "countdown", "nums": [6, 7, 8, 14], "target": 38, "question": "Using the numbers 6, 7, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "7 * (6 - (8 / 14))"}
{"id": "countdown-heldout-000282", "source": "countdown", "nums": [5, 8, 18, 21], "target": 74, "question": "Using the numbers 5, 8, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "((18 * 21) - 8) / 5"}
{"id": "countdown-heldout-000283", "source": "countdown", "nums": [7, 9, 13, 15], "target": 14, "question": "Using the numbers 7, 9, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(7 + 9) + (13 - 15)"}
{"id": "countdown-heldout-000284", "source": "countdown", "nums": [4, 11, 21, 22], "target": 15, "question": "Using the numbers 4, 11, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(4 + 11) * (22 - 21)"}
{"id": "countdown-heldout-000285", "source": "countdown", "nums": [2, 4, 13, 25], "target": 89, "question": "Using the numbers 2, 4, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(2 - 13) + (4 * 25)"}
{"id": "countdown-heldout-000286", "source": "countdown", "nums": [8, 10, 11, 13], "target": 36, "question": "Using the numbers 8, 10, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(8 + 10) * (13 - 11)"}
{"id": "countdown-heldout-000287", "source": "countdown", "nums": [3, 5, 7, 11], "target": 19, "question": "Using the numbers 3, 5, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(3 * 5) - (7 - 11)"}
{"id": "countdown-heldout-000288", "source": "countdown", "nums": [3, 3, 6, 20], "target": 51, "question": "Using the numbers 3, 3, 6, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(3 * 20) - (3 + 6)"}
{"id": "countdown-heldout-000289", "source": "countdown", "nums": [16, 18, 21, 24], "target": 44, "question": "Using the numbers 16, 18, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "16 + (24 / (18 / 21))"}
{"id": "countdown-heldout-000290", "source": "countdown", "nums": [10, 16, 19, 23], "target": 22, "question": "Using the numbers 10, 16, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(10 + 16) + (19 - 23)"}
{"id": "countdown-heldout-000291", "source": "countdown", "nums": [8, 11, 20, 25], "target": 47, "question": "Using the numbers 8, 11, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(8 * (20 - 11)) - 25"}
{"id": "countdown-heldout-000292", "source": "countdown", "nums": [5, 15, 15, 21], "target": 18, "question": "Using the numbers 5, 15, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(21 - 15) / (5 / 15)"}
{"id": "countdown-heldout-000293", "source": "countdown", "nums": [13, 15, 19, 25], "target": 65, "question": "Using the numbers 13, 15, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(15 * (19 - 13)) - 25"}
{"id": "countdown-heldout-000294", "source": "countdown", "nums": [2, 8, 12, 19], "target": 88, "question": "Using the numbers 2, 8, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "12 + (19 / (2 / 8))"}
{"id": "countdown-heldout-000295", "source": "countdown", "nums": [4, 14, 19, 23], "target": 98, "question": "Using the numbers 4, 14, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(4 * 14) + (19 + 23)"}
{"id": "countdown-heldout-000296", "source": "countdown", "nums": [3, 5, 10, 13], "target": 30, "question": "Using the numbers 3, 5, 10, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "5 * (13 + (3 - 10))"}
{"id": "countdown-heldout-000297", "source": "countdown", "nums": [9, 13, 17, 25], "target": 32, "question": "Using the numbers 9, 13, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(9 - 13) * (17 - 25)"}
{"id": "countdown-heldout-000298", "source": "countdown", "nums": [5, 11, 14, 24], "target": 39, "question": "Using the numbers 5, 11, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "24 - (5 * (11 - 14))"}
{"id": "countdown-heldout-000299", "source": "countdown", "nums": [2, 4, 9, 16], "target": 19, "question": "Using the numbers 2, 4, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(9 + 16) - (2 + 4)"}
{"id": "countdown-heldout-000300", "source": "countdown", "nums": [10, 12, 12, 18], "target": 48, "question": "Using the numbers 10, 12, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "12 * ((10 + 12) - 18)"}
{"id": "countdown-heldout-000301", "source": "countdown", "nums": [3, 3, 17, 20], "target": 74, "question": "Using the numbers 3, 3, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(3 * 20) - (3 - 17)"}
{"id": "countdown-heldout-000302", "source": "countdown", "nums": [5, 8, 9, 13], "target": 16, "question": "Using the numbers 5, 8, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "13 - (9 / (5 - 8))"}
{"id": "countdown-heldout-000303", "source": "countdown", "nums": [1, 2, 7, 14], "target": 10, "question": "Using the numbers 1, 2, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(1 + 2) - (7 - 14)"}
{"id": "countdown-heldout-000304", "source": "countdown", "nums": [11, 13, 15, 25], "target": 40, "question": "Using the numbers 11, 13, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(11 + 13) / (15 / 25)"}
{"id": "countdown-heldout-000305", "source": "countdown", "nums": [3, 4, 7, 8], "target": 60, "question": "Using the numbers 3, 4, 7, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "3 * ((4 * 7) - 8)"}
{"id": "countdown-heldout-000306", "source": "countdown", "nums": [2, 3, 6, 18], "target": 34, "question": "Using the numbers 2, 3, 6, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(3 * 6) - (2 - 18)"}
{"id": "countdown-heldout-000307", "source": "countdown", "nums": [11, 12, 13, 20], "target": 93, "question": "Using the numbers 11, 12, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(13 * (20 - 12)) - 11"}
{"id": "countdown-heldout-000308", "source": "countdown", "nums": [1, 3, 16, 23], "target": 35, "question": "Using the numbers 1, 3, 16, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(16 + 23) - (1 + 3)"}
{"id": "countdown-heldout-000309", "source": "countdown", "nums": [2, 6, 7, 22], "target": 57, "question": "Using the numbers 2, 6, 7, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(2 * 22) + (6 + 7)"}
{"id": "countdown-heldout-000310", "source": "countdown", "nums": [4, 5, 12, 16], "target": 72, "question": "Using the numbers 4, 5, 12, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(4 - 12) + (5 * 16)"}
{"id": "countdown-heldout-000311", "source": "countdown", "nums": [1, 8, 9, 17], "target": 88, "question": "Using the numbers 1, 8, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(8 * 9) - (1 - 17)"}
{"id": "countdown-heldout-000312", "source": "countdown", "nums": [9, 18, 22, 23], "target": 21, "question": "Using the numbers 9, 18, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(22 / (9 / 18)) - 23"}
{"id": "countdown-heldout-000313", "source": "countdown", "nums": [3, 9, 14, 24], "target": 75, "question": "Using the numbers 3, 9, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(3 * 14) + (9 + 24)"}
{"id": "countdown-heldout-000314", "source": "countdown", "nums": [2, 4, 15, 23], "target": 14, "question": "Using the numbers 2, 4, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(2 + 4) - (15 - 23)"}
{"id": "countdown-heldout-000315", "source": "countdown", "nums": [5, 8, 13, 25], "target": 51, "question": "Using the numbers 5, 8, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(5 + 8) + (13 + 25)"}
{"id": "countdown-heldout-000316", "source": "countdown", "nums": [2, 5, 10, 24], "target": 98, "question": "Using the numbers 2, 5, 10, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(2 + 5) * (24 - 10)"}
{"id": "countdown-heldout-000317", "source": "countdown", "nums": [5, 10, 10, 24], "target": 11, "question": "Using the numbers 5, 10, 10, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "((5 * 24) - 10) / 10"}
{"id": "countdown-heldout-000318", "source": "countdown", "nums": [5, 8, 18, 20], "target": 64, "question": "Using the numbers 5, 8, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(20 / (5 / 18)) - 8"}
{"id": "countdown-heldout-000319", "source": "countdown", "nums": [4, 5, 8, 17], "target": 65, "question": "Using the numbers 4, 5, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "5 * (17 + (4 - 8))"}
{"id": "countdown-heldout-000320", "source": "countdown", "nums": [3, 6, 14, 25], "target": 17, "question": "Using the numbers 3, 6, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(14 * (6 - 3)) - 25"}
{"id": "countdown-heldout-000321", "source": "countdown", "nums": [2, 5, 11, 13], "target": 81, "question": "Using the numbers 2, 5, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(2 * 13) + (5 * 11)"}
{"id": "countdown-heldout-000322", "source": "countdown", "nums": [1, 9, 12, 20], "target": 71, "question": "Using the numbers 1, 9, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(9 * (20 - 12)) - 1"}
{"id": "countdown-heldout-000323", "source": "countdown", "nums": [5, 13, 15, 16], "target": 19, "question": "Using the numbers 5, 13, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(5 + 13) - (15 - 16)"}
{"id": "countdown-heldout-000324", "source": "countdown", "nums": [1, 5, 10, 14], "target": 16, "question": "Using the numbers 1, 5, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(1 - 5) * (10 - 14)"}
{"id": "countdown-heldout-000325", "source": "countdown", "nums": [2, 13, 20, 24], "target": 15, "question": "Using the numbers 2, 13, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "24 - (20 + (2 - 13))"}
{"id": "countdown-heldout-000326", "source": "countdown", "nums": [3, 4, 18, 22], "target": 67, "question": "Using the numbers 3, 4, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(4 * 22) - (3 + 18)"}
{"id": "countdown-heldout-000327", "source": "countdown", "nums": [2, 14, 19, 21], "target": 16, "question": "Using the numbers 2, 14, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "19 - (21 * (2 / 14))"}
{"id": "countdown-heldout-000328", "source": "countdown", "nums": [7, 9, 14, 19], "target": 38, "question": "Using the numbers 7, 9, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "19 * ((7 + 9) - 14)"}
{"id": "countdown-heldout-000329", "source": "countdown", "nums": [7, 9, 17, 18], "target": 31, "question": "Using the numbers 7, 9, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "17 + (18 * (7 / 9))"}
{"id": "countdown-heldout-000330", "source": "countdown", "nums": [9, 11, 13, 18], "target": 48, "question": "Using the numbers 9, 11, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(11 + 13) / (9 / 18)"}
{"id": "countdown-heldout-000331", "source": "countdown", "nums": [5, 8, 14, 20], "target": 40, "question": "Using the numbers 5, 8, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "5 + (20 / (8 / 14))"}
{"id": "countdown-heldout-000332", "source": "countdown", "nums": [2, 3, 12, 14], "target": 11, "question": "Using the numbers 2, 3, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "((3 * 12) - 14) / 2"}
{"id": "countdown-heldout-000333", "source": "countdown", "nums": [2, 7, 17, 21], "target": 41, "question": "Using the numbers 2, 7, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "21 - (2 * (7 - 17))"}
{"id": "countdown-heldout-000334", "source": "countdown", "nums": [7, 15, 17, 17], "target": 87, "question": "Using the numbers 7, 15, 17, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(7 * 17) - (15 + 17)"}
{"id": "countdown-heldout-000335", "source": "countdown", "nums": [8, 13, 13, 17], "target": 87, "question": "Using the numbers 8, 13, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "13 * (8 - (17 / 13))"}
{"id": "countdown-heldout-000336", "source": "countdown", "nums": [1, 4, 5, 20], "target": 85, "question": "Using the numbers 1, 4, 5, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "5 * (20 + (1 - 4))"}
{"id": "countdown-heldout-000337", "source": "countdown", "nums": [5, 9, 20, 20], "target": 36, "question": "Using the numbers 5, 9, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(5 - 9) + (20 + 20)"}
{"id": "countdown-heldout-000338", "source": "countdown", "nums": [1, 4, 17, 25], "target": 45, "question": "Using the numbers 1, 4, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(17 + 25) - (1 - 4)"}
{"id": "countdown-heldout-000339", "source": "countdown", "nums": [11, 21, 23, 24], "target": 79, "question": "Using the numbers 11, 21, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "(11 + 21) + (23 + 24)"}
{"id": "countdown-heldout-000340", "source": "countdown", "nums": [8, 9, 15, 23], "target": 38, "question": "Using the numbers 8, 9, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "23 - (15 * (8 - 9))"}
{"id": "countdown-heldout-000341", "source": "countdown", "nums": [8, 10, 18, 23], "target": 27, "question": "Using the numbers 8, 10, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(23 - 8) / (10 / 18)"}
{"id": "countdown-heldout-000342", "source": "countdown", "nums": [9, 10, 16, 22], "target": 55, "question": "Using the numbers 9, 10, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(9 + 16) / (10 / 22)"}
{"id": "countdown-heldout-000343", "source": "countdown", "nums": [9, 10, 13, 22], "target": 99, "question": "Using the numbers 9, 10, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(9 * 10) - (13 - 22)"}
{"id": "countdown-heldout-000344", "source": "countdown", "nums": [2, 3, 5, 16], "target": 86, "question": "Using the numbers 2, 3, 5, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(2 * 3) + (5 * 16)"}
{"id": "countdown-heldout-000345", "source": "countdown", "nums": [1, 2, 7, 10], "target": 12, "question": "Using the numbers 1, 2, 7, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "7 + (10 / (1 * 2))"}
{"id": "countdown-heldout-000346", "source": "countdown", "nums": [6, 10, 11, 19], "target": 21, "question": "Using the numbers 6, 10, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "19 - (10 / (6 - 11))"}
{"id": "countdown-heldout-000347", "source": "countdown", "nums": [2, 4, 13, 21], "target": 69, "question": "Using the numbers 2, 4, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(4 * 21) - (2 + 13)"}
{"id": "countdown-heldout-000348", "source": "countdown", "nums": [4, 7, 8, 14], "target": 31, "question": "Using the numbers 4, 7, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "7 - (4 * (8 - 14))"}
{"id": "countdown-heldout-000349", "source": "countdown", "nums": [6, 8, 15, 16], "target": 24, "question": "Using the numbers 6, 8, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(8 * 15) - (6 * 16)"}
{"id": "countdown-heldout-000350", "source": "countdown", "nums": [3, 8, 18, 24], "target": 58, "question": "Using the numbers 3, 8, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "((8 * 24) - 18) / 3"}
{"id": "countdown-heldout-000351", "source": "countdown", "nums": [13, 15, 15, 17], "target": 41, "question": "Using the numbers 13, 15, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "15 - (13 * (15 - 17))"}
{"id": "countdown-heldout-000352", "source": "countdown", "nums": [2, 12, 14, 15], "target": 63, "question": "Using the numbers 2, 12, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "14 * (12 - (15 / 2))"}
{"id": "countdown-heldout-000353", "source": "countdown", "nums": [2, 5, 6, 13], "target": 29, "question": "Using the numbers 2, 5, 6, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(6 * (2 + 5)) - 13"}
{"id": "countdown-heldout-000354", "source": "countdown", "nums": [10, 14, 19, 20], "target": 12, "question": "Using the numbers 10, 14, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "19 - ((10 * 14) / 20)"}
{"id": "countdown-heldout-000355", "source": "countdown", "nums": [4, 15, 18, 23], "target": 10, "question": "Using the numbers 4, 15, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(15 * 18) / (4 + 23)"}
{"id": "countdown-heldout-000356", "source": "countdown", "nums": [2, 3, 5, 10], "target": 39, "question": "Using the numbers 2, 3, 5, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "3 * (10 - (2 - 5))"}
{"id": "countdown-heldout-000357", "source": "countdown", "nums": [2, 6, 13, 18], "target": 12, "question": "Using the numbers 2, 6, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(2 + 13) - (18 / 6)"}
{"id": "countdown-heldout-000358", "source": "countdown", "nums": [4, 6, 14, 22], "target": 34, "question": "Using the numbers 4, 6, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(4 - 6) + (14 + 22)"}
{"id": "countdown-heldout-000359", "source": "countdown", "nums": [5, 11, 11, 15], "target": 49, "question": "Using the numbers 5, 11, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "5 - (11 * (11 - 15))"}
{"id": "countdown-heldout-000360", "source": "countdown", "nums": [5, 8, 19, 22], "target": 43, "question": "Using the numbers 5, 8, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(5 * 8) - (19 - 22)"}
{"id": "countdown-heldout-000361", "source": "countdown", "nums": [6, 11, 13, 22], "target": 77, "question": "Using the numbers 6, 11, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(6 - 13) * (11 - 22)"}
{"id": "countdown-heldout-000362", "source": "countdown", "nums": [2, 6, 13, 16], "target": 39, "question": "Using the numbers 2, 6, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 + 16) / (6 / 13)"}
{"id": "countdown-heldout-000363", "source": "countdown", "nums": [5, 8, 16, 17], "target": 31, "question": "Using the numbers 5, 8, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(16 * (8 - 5)) - 17"}
{"id": "countdown-heldout-000364", "source": "countdown", "nums": [5, 6, 9, 20], "target": 36, "question": "Using the numbers 5, 6, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "6 * (20 - (5 + 9))"}
{"id": "countdown-heldout-000365", "source": "countdown", "nums": [1, 8, 13, 24], "target": 52, "question": "Using the numbers 1, 8, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "13 * (1 + (24 / 8))"}
{"id": "countdown-heldout-000366", "source": "countdown", "nums": [1, 2, 10, 17], "target": 52, "question": "Using the numbers 1, 2, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "2 * (17 - (1 - 10))"}
{"id": "countdown-heldout-000367", "source": "countdown", "nums": [14, 14, 20, 23], "target": 31, "question": "Using the numbers 14, 14, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(14 + 14) - (20 - 23)"}
{"id": "countdown-heldout-000368", "source": "countdown", "nums": [2, 8, 21, 24], "target": 22, "question": "Using the numbers 2, 8, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(24 / 8) - (2 - 21)"}
{"id": "countdown-heldout-000369", "source": "countdown", "nums": [2, 10, 17, 21], "target": 69, "question": "Using the numbers 2, 10, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(2 * 21) + (10 + 17)"}
{"id": "countdown-heldout-000370", "source": "countdown", "nums": [6, 20, 21, 23], "target": 12, "question": "Using the numbers 6, 20, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(21 - 23) - (6 - 20)"}
{"id": "countdown-heldout-000371", "source": "countdown", "nums": [5, 6, 17, 18], "target": 82, "question": "Using the numbers 5, 6, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(5 * 17) - (18 / 6)"}
{"id": "countdown-heldout-000372", "source": "countdown", "nums": [1, 3, 4, 7], "target": 25, "question": "Using the numbers 1, 3, 4, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(4 * 7) - (1 * 3)"}
{"id": "countdown-heldout-000373", "source": "countdown", "nums": [1, 3, 15, 21], "target": 100, "question": "Using the numbers 1, 3, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(21 - 1) / (3 / 15)"}
{"id": "countdown-heldout-000374", "source": "countdown", "nums": [8, 9, 10, 25], "target": 35, "question": "Using the numbers 8, 9, 10, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "25 - (10 * (8 - 9))"}
{"id": "countdown-heldout-000375", "source": "countdown", "nums": [2, 3, 8, 15], "target": 70, "question": "Using the numbers 2, 3, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "15 * (2 + (8 / 3))"}
{"id": "countdown-heldout-000376", "source": "countdown", "nums": [2, 11, 22, 25], "target": 83, "question": "Using the numbers 2, 11, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "(2 * 25) + (11 + 22)"}
{"id": "countdown-heldout-000377", "source": "countdown", "nums": [2, 8, 10, 19], "target": 39, "question": "Using the numbers 2, 8, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 + 8) + (10 + 19)"}
{"id": "countdown-heldout-000378", "source": "countdown", "nums": [4, 12, 17, 17], "target": 99, "question": "Using the numbers 4, 12, 17, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(4 * (12 + 17)) - 17"}
{"id": "countdown-heldout-000379", "source": "countdown", "nums": [4, 7, 15, 18], "target": 19, "question": "Using the numbers 4, 7, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "7 - (4 * (15 - 18))"}
{"id": "countdown-heldout-000380", "source": "countdown", "nums": [7, 16, 20, 20], "target": 35, "question": "Using the numbers 7, 16, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(7 * 20) / (20 - 16)"}
{"id": "countdown-heldout-000381", "source": "countdown", "nums": [12, 15, 17, 25], "target": 14, "question": "Using the numbers 12, 15, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(17 + 25) / (15 - 12)"}
{"id": "countdown-heldout-000382", "source": "countdown", "nums": [8, 20, 20, 21], "target": 29, "question": "Using the numbers 8, 20, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(8 + 20) - (20 - 21)"}
{"id": "countdown-heldout-000383", "source": "countdown", "nums": [3, 5, 15, 17], "target": 67, "question": "Using the numbers 3, 5, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(5 * 17) - (3 + 15)"}
{"id": "countdown-heldout-000384", "source": "countdown", "nums": [2, 14, 18, 24], "target": 90, "question": "Using the numbers 2, 14, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(24 - 14) / (2 / 18)"}
{"id": "countdown-heldout-000385", "source": "countdown", "nums": [5, 8, 14, 15], "target": 11, "question": "Using the numbers 5, 8, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(5 * 8) - (14 + 15)"}
{"id": "countdown-heldout-000386", "source": "countdown", "nums": [3, 15, 19, 24], "target": 66, "question": "Using the numbers 3, 15, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(3 * 19) - (15 - 24)"}
{"id": "countdown-heldout-000387", "source": "countdown", "nums": [11, 15, 20, 24], "target": 71, "question": "Using the numbers 11, 15, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "11 - (15 * (20 - 24))"}
{"id": "countdown-heldout-000388", "source": "countdown", "nums": [4, 9, 13, 19], "target": 68, "question": "Using the numbers 4, 9, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(4 * 9) + (13 + 19)"}
{"id": "countdown-heldout-000389", "source": "countdown", "nums": [2, 4, 12, 23], "target": 41, "question": "Using the numbers 2, 4, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(2 + 4) + (12 + 23)"}
{"id": "countdown-heldout-000390", "source": "countdown", "nums": [1, 2, 4, 11], "target": 25, "question": "Using the numbers 1, 2, 4, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(2 * 11) - (1 - 4)"}
{"id": "countdown-heldout-000391", "source": "countdown", "nums": [2, 3, 9, 21], "target": 45, "question": "Using the numbers 2, 3, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(9 + 21) / (2 / 3)"}
{"id": "countdown-heldout-000392", "source": "countdown", "nums": [17, 17, 21, 24], "target": 68, "question": "Using the numbers 17, 17, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "17 - (17 * (21 - 24))"}
{"id": "countdown-heldout-000393", "source": "countdown", "nums": [13, 13, 20, 21], "target": 25, "question": "Using the numbers 13, 13, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(13 + 13) + (20 - 21)"}
{"id": "countdown-heldout-000394", "source": "countdown", "nums": [2, 15, 18, 25], "target": 56, "question": "Using the numbers 2, 15, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(18 + 25) - (2 - 15)"}
{"id": "countdown-heldout-000395", "source": "countdown", "nums": [11, 13, 14, 15], "target": 77, "question": "Using the numbers 11, 13, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(11 * 14) / (15 - 13)"}
{"id": "countdown-heldout-000396", "source": "countdown", "nums": [7, 11, 17, 21], "target": 63, "question": "Using the numbers 7, 11, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "21 - (7 * (11 - 17))"}
{"id": "countdown-heldout-000397", "source": "countdown", "nums": [2, 4, 5, 14], "target": 59, "question": "Using the numbers 2, 4, 5, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(4 * 14) - (2 - 5)"}
{"id": "countdown-heldout-000398", "source": "countdown", "nums": [1, 12, 14, 21], "target": 48, "question": "Using the numbers 1, 12, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(1 + 12) + (14 + 21)"}
{"id": "countdown-heldout-000399", "source": "countdown", "nums": [5, 6, 11, 25], "target": 66, "question": "Using the numbers 5, 6, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(5 * 6) + (11 + 25)"}
{"id": "countdown-heldout-000400", "source": "countdown", "nums": [1, 3, 13, 18], "target": 22, "question": "Using the numbers 1, 3, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "13 - (18 / (1 - 3))"}
{"id": "countdown-heldout-000401", "source": "countdown", "nums": [3, 6, 11, 16], "target": 54, "question": "Using the numbers 3, 6, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(11 + 16) / (3 / 6)"}
{"id": "countdown-heldout-000402", "source": "countdown", "nums": [2, 5, 7, 23], "target": 42, "question": "Using the numbers 2, 5, 7, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(2 * 7) + (5 + 23)"}
{"id": "countdown-heldout-000403", "source": "countdown", "nums": [3, 5, 10, 13], "target": 64, "question": "Using the numbers 3, 5, 10, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "10 + (3 * (5 + 13))"}
{"id": "countdown-heldout-000404", "source": "countdown", "nums": [4, 10, 16, 21], "target": 90, "question": "Using the numbers 4, 10, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "10 * (21 + (4 - 16))"}
{"id": "countdown-heldout-000405", "source": "countdown", "nums": [3, 4, 12, 16], "target": 24, "question": "Using the numbers 3, 4, 12, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "12 + (16 * (3 / 4))"}
{"id": "countdown-heldout-000406", "source": "countdown", "nums": [1, 7, 14, 24], "target": 69, "question": "Using the numbers 1, 7, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(7 * (24 - 14)) - 1"}
{"id": "countdown-heldout-000407", "source": "countdown", "nums": [1, 7, 9, 16], "target": 72, "question": "Using the numbers 1, 7, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "9 * (16 - (1 + 7))"}
{"id": "countdown-heldout-000408", "source": "countdown", "nums": [3, 4, 14, 19], "target": 33, "question": "Using the numbers 3, 4, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "19 - (14 * (3 - 4))"}
{"id": "countdown-heldout-000409", "source": "countdown", "nums": [1, 7, 16, 22], "target": 41, "question": "Using the numbers 1, 7, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(7 * (22 - 16)) - 1"}
{"id": "countdown-heldout-000410", "source": "countdown", "nums": [9, 11, 18, 20], "target": 16, "question": "Using the numbers 9, 11, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(18 * (11 - 9)) - 20"}
{"id": "countdown-heldout-000411", "source": "countdown", "nums": [3, 7, 19, 22], "target": 77, "question": "Using the numbers 3, 7, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "22 / (3 - (19 / 7))"}
{"id": "countdown-heldout-000412", "source": "countdown", "nums": [11, 18, 19, 24], "target": 12, "question": "Using the numbers 11, 18, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "24 - (19 + (11 - 18))"}
{"id": "countdown-heldout-000413", "source": "countdown", "nums": [10, 10, 14, 24], "target": 90, "question": "Using the numbers 10, 10, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(10 * 10) + (14 - 24)"}
{"id": "countdown-heldout-000414", "source": "countdown", "nums": [2, 9, 19, 22], "target": 27, "question": "Using the numbers 2, 9, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "22 - ((9 - 19) / 2)"}
{"id": "countdown-heldout-000415", "source": "countdown", "nums": [1, 5, 12, 23], "target": 21, "question": "Using the numbers 1, 5, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "23 - (12 / (1 + 5))"}
{"id": "countdown-heldout-000416", "source": "countdown", "nums": [9, 9, 11, 11], "target": 11, "question": "Using the numbers 9, 9, 11, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "11 + (11 * (9 - 9))"}
{"id": "countdown-heldout-000417", "source": "countdown", "nums": [3, 3, 20, 25], "target": 26, "question": "Using the numbers 3, 3, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(3 * (20 - 3)) - 25"}
{"id": "countdown-heldout-000418", "source": "countdown", "nums": [5, 6, 22, 23], "target": 44, "question": "Using the numbers 5, 6, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(5 - 6) + (22 + 23)"}
{"id": "countdown-heldout-000419", "source": "countdown", "nums": [6, 8, 20, 21], "target": 43, "question": "Using the numbers 6, 8, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(20 + 21) - (6 - 8)"}
{"id": "countdown-heldout-000420", "source": "countdown", "nums": [3, 4, 18, 21], "target": 36, "question": "Using the numbers 3, 4, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(3 * 4) * (21 - 18)"}
{"id": "countdown-heldout-000421", "source": "countdown", "nums": [4, 7, 13, 14], "target": 63, "question": "Using the numbers 4, 7, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(4 - 13) * (7 - 14)"}
{"id": "countdown-heldout-000422", "source": "countdown", "nums": [9, 18, 20, 20], "target": 80, "question": "Using the numbers 9, 18, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(20 + 20) / (9 / 18)"}
{"id": "countdown-heldout-000423", "source": "countdown", "nums": [9, 10, 15, 23], "target": 18, "question": "Using the numbers 9, 10, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "9 * ((10 + 15) - 23)"}
{"id": "countdown-heldout-000424", "source": "countdown", "nums": [2, 4, 14, 17], "target": 29, "question": "Using the numbers 2, 4, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(2 - 4) + (14 + 17)"}
{"id": "countdown-heldout-000425", "source": "countdown", "nums": [1, 2, 4, 24], "target": 49, "question": "Using the numbers 1, 2, 4, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "1 - (24 * (2 - 4))"}
{"id": "countdown-heldout-000426", "source": "countdown", "nums": [4, 7, 11, 20], "target": 49, "question": "Using the numbers 4, 7, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(20 * (7 - 4)) - 11"}
{"id": "countdown-heldout-000427", "source": "countdown", "nums": [5, 8, 12, 18], "target": 78, "question": "Using the numbers 5, 8, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(5 + 8) * (18 - 12)"}
{"id": "countdown-heldout-000428", "source": "countdown", "nums": [5, 8, 15, 25], "target": 42, "question": "Using the numbers 5, 8, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(5 * 15) - (8 + 25)"}
{"id": "countdown-heldout-000429", "source": "countdown", "nums": [11, 13, 19, 20], "target": 100, "question": "Using the numbers 11, 13, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "20 * ((11 + 13) - 19)"}
{"id": "countdown-heldout-000430", "source": "countdown", "nums": [2, 10, 24, 25], "target": 65, "question": "Using the numbers 2, 10, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(2 + 24) / (10 / 25)"}
{"id": "countdown-heldout-000431", "source": "countdown", "nums": [9, 13, 14, 22], "target": 91, "question": "Using the numbers 9, 13, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(9 * 14) - (13 + 22)"}
{"id": "countdown-heldout-000432", "source": "countdown", "nums": [5, 13, 16, 17], "target": 96, "question": "Using the numbers 5, 13, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(13 + 17) / (5 / 16)"}
{"id": "countdown-heldout-000433", "source": "countdown", "nums": [4, 5, 11, 17], "target": 66, "question": "Using the numbers 4, 5, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(4 * 11) + (5 + 17)"}
{"id": "countdown-heldout-000434", "source": "countdown", "nums": [16, 20, 23, 24], "target": 21, "question": "Using the numbers 16, 20, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "23 - ((16 + 24) / 20)"}
{"id": "countdown-heldout-000435", "source": "countdown", "nums": [8, 14, 14, 18], "target": 28, "question": "Using the numbers 8, 14, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(8 * 14) / (18 - 14)"}
{"id": "countdown-heldout-000436", "source": "countdown", "nums": [3, 18, 22, 23], "target": 55, "question": "Using the numbers 3, 18, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(3 * 18) - (22 - 23)"}
{"id": "countdown-heldout-000437", "source": "countdown", "nums": [5, 10, 13, 21], "target": 10, "question": "Using the numbers 5, 10, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(10 / 5) - (13 - 21)"}
{"id": "countdown-heldout-000438", "source": "countdown", "nums": [6, 9, 13, 18], "target": 57, "question": "Using the numbers 6, 9, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "18 - (13 * (6 - 9))"}
{"id": "countdown-heldout-000439", "source": "countdown", "nums": [1, 3, 7, 8], "target": 33, "question": "Using the numbers 1, 3, 7, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "1 - (8 * (3 - 7))"}
{"id": "countdown-heldout-000440", "source": "countdown", "nums": [5, 10, 13, 25], "target": 75, "question": "Using the numbers 5, 10, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "10 + (25 / (5 / 13))"}
{"id": "countdown-heldout-000441", "source": "countdown", "nums": [2, 17, 21, 23], "target": 99, "question": "Using the numbers 2, 17, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "23 + (2 * (17 + 21))"}
{"id": "countdown-heldout-000442", "source": "countdown", "nums": [6, 10, 12, 15], "target": 60, "question": "Using the numbers 6, 10, 12, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "15 * ((6 + 10) - 12)"}
{"id": "countdown-heldout-000443", "source": "countdown", "nums": [9, 9, 20, 25], "target": 50, "question": "Using the numbers 9, 9, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "25 * (20 - (9 + 9))"}
{"id": "countdown-heldout-000444", "source": "countdown", "nums": [2, 6, 9, 25], "target": 47, "question": "Using the numbers 2, 6, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(9 * (2 + 6)) - 25"}
{"id": "countdown-heldout-000445", "source": "countdown", "nums": [6, 11, 20, 20], "target": 24, "question": "Using the numbers 6, 11, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "20 - (20 / (6 - 11))"}
{"id": "countdown-heldout-000446", "source": "countdown", "nums": [1, 5, 13, 20], "target": 39, "question": "Using the numbers 1, 5, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(1 + 5) + (13 + 20)"}
{"id": "countdown-heldout-000447", "source": "countdown", "nums": [5, 9, 10, 10], "target": 86, "question": "Using the numbers 5, 9, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(10 * 10) - (5 + 9)"}
{"id": "countdown-heldout-000448", "source": "countdown", "nums": [4, 11, 22, 23], "target": 76, "question": "Using the numbers 4, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(4 * 22) + (11 - 23)"}
{"id": "countdown-heldout-000449", "source": "countdown", "nums": [4, 8, 17, 18], "target": 12, "question": "Using the numbers 4, 8, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(4 + 8) * (18 - 17)"}
{"id": "countdown-heldout-000450", "source": "countdown", "nums": [5, 9, 10, 15], "target": 16, "question": "Using the numbers 5, 9, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(9 + 10) - (15 / 5)"}
{"id": "countdown-heldout-000451", "source": "countdown", "nums": [2, 3, 12, 25], "target": 12, "question": "Using the numbers 2, 3, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(2 - 3) - (12 - 25)"}
{"id": "countdown-heldout-000452", "source": "countdown", "nums": [7, 14, 22, 23], "target": 52, "question": "Using the numbers 7, 14, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(22 + 23) - (7 - 14)"}
{"id": "countdown-heldout-000453", "source": "countdown", "nums": [12, 15, 20, 23], "target": 80, "question": "Using the numbers 12, 15, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "20 * ((12 + 15) - 23)"}
{"id": "countdown-heldout-000454", "source": "countdown", "nums": [3, 5, 8, 20], "target": 47, "question": "Using the numbers 3, 5, 8, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(3 * 20) - (5 + 8)"}
{"id": "countdown-heldout-000455", "source": "countdown", "nums": [2, 5, 5, 25], "target": 60, "question": "Using the numbers 2, 5, 5, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "25 + (5 * (2 + 5))"}
{"id": "countdown-heldout-000456", "source": "countdown", "nums": [8, 12, 15, 22], "target": 42, "question": "Using the numbers 8, 12, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(8 - 22) * (12 - 15)"}
{"id": "countdown-heldout-000457", "source": "countdown", "nums": [5, 7, 10, 10], "target": 25, "question": "Using the numbers 5, 7, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "10 - (5 * (7 - 10))"}
{"id": "countdown-heldout-000458", "source": "countdown", "nums": [4, 10, 15, 25], "target": 60, "question": "Using the numbers 4, 10, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(4 - 10) * (15 - 25)"}
{"id": "countdown-heldout-000459", "source": "countdown", "nums": [2, 10, 15, 24], "target": 48, "question": "Using the numbers 2, 10, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "24 / (2 - (15 / 10))"}
{"id": "countdown-heldout-000460", "source": "countdown", "nums": [9, 13, 15, 22], "target": 73, "question": "Using the numbers 9, 13, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(22 * (13 - 9)) - 15"}
{"id": "countdown-heldout-000461", "source": "countdown", "nums": [5, 8, 11, 25], "target": 38, "question": "Using the numbers 5, 8, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(5 * 11) + (8 - 25)"}
{"id": "countdown-heldout-000462", "source": "countdown", "nums": [2, 5, 13, 14], "target": 49, "question": "Using the numbers 2, 5, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(5 * 13) - (2 + 14)"}
{"id": "countdown-heldout-000463", "source": "countdown", "nums": [3, 9, 14, 21], "target": 77, "question": "Using the numbers 3, 9, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "14 + (21 / (3 / 9))"}
{"id": "countdown-heldout-000464", "source": "countdown", "nums": [17, 18, 19, 22], "target": 42, "question": "Using the numbers 17, 18, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(19 + 22) - (17 - 18)"}
{"id": "countdown-heldout-000465", "source": "countdown", "nums": [2, 4, 10, 16], "target": 80, "question": "Using the numbers 2, 4, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "10 * (16 - (2 * 4))"}
{"id": "countdown-heldout-000466", "source": "countdown", "nums": [8, 8, 24, 25], "target": 30, "question": "Using the numbers 8, 8, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(8 + 25) - (24 / 8)"}
{"id": "countdown-heldout-000467", "source": "countdown", "nums": [1, 4, 6, 19], "target": 78, "question": "Using the numbers 1, 4, 6, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "6 - (4 * (1 - 19))"}
{"id": "countdown-heldout-000468", "source": "countdown", "nums": [3, 10, 12, 20], "target": 17, "question": "Using the numbers 3, 10, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(3 + 12) + (20 / 10)"}
{"id": "countdown-heldout-000469", "source": "countdown", "nums": [2, 13, 13, 17], "target": 17, "question": "Using the numbers 2, 13, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "17 + (2 * (13 - 13))"}
{"id": "countdown-heldout-000470", "source": "countdown", "nums": [1, 5, 6, 11], "target": 42, "question": "Using the numbers 1, 5, 6, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "6 * (11 + (1 - 5))"}
{"id": "countdown-heldout-000471", "source": "countdown", "nums": [5, 12, 14, 17], "target": 65, "question": "Using the numbers 5, 12, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(5 * 14) + (12 - 17)"}
{"id": "countdown-heldout-000472", "source": "countdown", "nums": [5, 7, 7, 11], "target": 81, "question": "Using the numbers 5, 7, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "11 + (5 * (7 + 7))"}
{"id": "countdown-heldout-000473", "source": "countdown", "nums": [2, 7, 12, 24], "target": 46, "question": "Using the numbers 2, 7, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "12 - (2 * (7 - 24))"}
{"id": "countdown-heldout-000474", "source": "countdown", "nums": [2, 9, 20, 22], "target": 42, "question": "Using the numbers 2, 9, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(2 * (9 + 22)) - 20"}
{"id": "countdown-heldout-000475", "source": "countdown", "nums": [18, 19, 21, 24], "target": 47, "question": "Using the numbers 18, 19, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "19 + (24 / (18 / 21))"}
{"id": "countdown-heldout-000476", "source": "countdown", "nums": [3, 14, 18, 21], "target": 49, "question": "Using the numbers 3, 14, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(3 * 14) / (18 / 21)"}
{"id": "countdown-heldout-000477", "source": "countdown", "nums": [6, 10, 11, 14], "target": 26, "question": "Using the numbers 6, 10, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(10 * 11) - (6 * 14)"}
{"id": "countdown-heldout-000478", "source": "countdown", "nums": [12, 12, 18, 22], "target": 41, "question": "Using the numbers 12, 12, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(12 / 12) + (18 + 22)"}
{"id": "countdown-heldout-000479", "source": "countdown", "nums": [2, 5, 6, 18], "target": 59, "question": "Using the numbers 2, 5, 6, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "5 + (18 / (2 / 6))"}
{"id": "countdown-heldout-000480", "source": "countdown", "nums": [1, 5, 11, 18], "target": 78, "question": "Using the numbers 1, 5, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(5 * 18) - (1 + 11)"}
{"id": "countdown-heldout-000481", "source": "countdown", "nums": [8, 9, 18, 20], "target": 18, "question": "Using the numbers 8, 9, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "8 + (20 * (9 / 18))"}
{"id": "countdown-heldout-000482", "source": "countdown", "nums": [7, 9, 20, 24], "target": 72, "question": "Using the numbers 7, 9, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(7 + 20) / (9 / 24)"}
{"id": "countdown-heldout-000483", "source": "countdown", "nums": [3, 14, 16, 24], "target": 40, "question": "Using the numbers 3, 14, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "3 * (14 - (16 / 24))"}
{"id": "countdown-heldout-000484", "source": "countdown", "nums": [8, 9, 10, 23], "target": 37, "question": "Using the numbers 8, 9, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(23 * (10 - 8)) - 9"}
{"id": "countdown-heldout-000485", "source": "countdown", "nums": [5, 7, 7, 11], "target": 82, "question": "Using the numbers 5, 7, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "7 * (11 + (5 / 7))"}
{"id": "countdown-heldout-000486", "source": "countdown", "nums": [3, 9, 11, 19], "target": 99, "question": "Using the numbers 3, 9, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "9 * (19 + (3 - 11))"}
{"id": "countdown-heldout-000487", "source": "countdown", "nums": [4, 7, 24, 24], "target": 18, "question": "Using the numbers 4, 7, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(24 / (4 / 7)) - 24"}
{"id": "countdown-heldout-000488", "source": "countdown", "nums": [1, 15, 16, 21], "target": 56, "question": "Using the numbers 1, 15, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "16 / (1 - (15 / 21))"}
{"id": "countdown-heldout-000489", "source": "countdown", "nums": [2, 8, 20, 24], "target": 36, "question": "Using the numbers 2, 8, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(2 * 24) + (8 - 20)"}
{"id": "countdown-heldout-000490", "source": "countdown", "nums": [3, 10, 14, 20], "target": 24, "question": "Using the numbers 3, 10, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(3 * 10) + (14 - 20)"}
{"id": "countdown-heldout-000491", "source": "countdown", "nums": [5, 5, 7, 9], "target": 12, "question": "Using the numbers 5, 5, 7, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(5 + 5) - (7 - 9)"}
{"id": "countdown-heldout-000492", "source": "countdown", "nums": [2, 4, 5, 14], "target": 12, "question": "Using the numbers 2, 4, 5, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "5 - (14 / (2 - 4))"}
{"id": "countdown-heldout-000493", "source": "countdown", "nums": [14, 23, 25, 25], "target": 13, "question": "Using the numbers 14, 23, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(25 + 25) - (14 + 23)"}
{"id": "countdown-heldout-000494", "source": "countdown", "nums": [3, 17, 20, 21], "target": 99, "question": "Using the numbers 3, 17, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(21 / (3 / 17)) - 20"}
{"id": "countdown-heldout-000495", "source": "countdown", "nums": [3, 5, 13, 17], "target": 53, "question": "Using the numbers 3, 5, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(3 * (5 + 17)) - 13"}
{"id": "countdown-heldout-000496", "source": "countdown", "nums": [1, 7, 17, 19], "target": 97, "question": "Using the numbers 1, 7, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(19 * (7 - 1)) - 17"}
{"id": "countdown-heldout-000497", "source": "countdown", "nums": [6, 10, 10, 17], "target": 18, "question": "Using the numbers 6, 10, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "6 * ((10 + 10) - 17)"}
{"id": "countdown-heldout-000498", "source": "countdown", "nums": [16, 16, 21, 23], "target": 16, "question": "Using the numbers 16, 16, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(16 + 16) / (23 - 21)"}
{"id": "countdown-heldout-000499", "source": "countdown", "nums": [6, 11, 14, 18], "target": 75, "question": "Using the numbers 6, 11, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(11 + 14) / (6 / 18)"}
{"id": "countdown-heldout-000500", "source": "countdown", "nums": [11, 13, 14, 16], "target": 37, "question": "Using the numbers 11, 13, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "11 - (13 * (14 - 16))"}
{"id": "countdown-heldout-000501", "source": "countdown", "nums": [4, 5, 16, 17], "target": 18, "question": "Using the numbers 4, 5, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(5 + 17) - (16 / 4)"}
{"id": "countdown-heldout-000502", "source": "countdown", "nums": [17, 18, 19, 21], "target": 93, "question": "Using the numbers 17, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(19 * 21) - (17 * 18)"}
{"id": "countdown-heldout-000503", "source": "countdown", "nums": [2, 5, 6, 10], "target": 28, "question": "Using the numbers 2, 5, 6, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(2 + 5) * (10 - 6)"}
{"id": "countdown-heldout-000504", "source": "countdown", "nums": [5, 5, 12, 21], "target": 64, "question": "Using the numbers 5, 5, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(5 * (5 + 12)) - 21"}
{"id": "countdown-heldout-000505", "source": "countdown", "nums": [4, 5, 18, 22], "target": 74, "question": "Using the numbers 4, 5, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "22 - (4 * (5 - 18))"}
{"id": "countdown-heldout-000506", "source": "countdown", "nums": [5, 9, 15, 23], "target": 52, "question": "Using the numbers 5, 9, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(5 + 9) + (15 + 23)"}
{"id": "countdown-heldout-000507", "source": "countdown", "nums": [2, 5, 10, 21], "target": 51, "question": "Using the numbers 2, 5, 10, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "21 - (10 * (2 - 5))"}
{"id": "countdown-heldout-000508", "source": "countdown", "nums": [6, 10, 14, 23], "target": 33, "question": "Using the numbers 6, 10, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(6 - 10) + (14 + 23)"}
{"id": "countdown-heldout-000509", "source": "countdown", "nums": [2, 4, 4, 7], "target": 20, "question": "Using the numbers 2, 4, 4, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "4 * (7 + (2 - 4))"}
{"id": "countdown-heldout-000510", "source": "countdown", "nums": [4, 4, 5, 12], "target": 32, "question": "Using the numbers 4, 4, 5, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "4 * ((4 * 5) - 12)"}
{"id": "countdown-heldout-000511", "source": "countdown", "nums": [2, 5, 7, 20], "target": 60, "question": "Using the numbers 2, 5, 7, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "20 * ((2 * 5) - 7)"}
{"id": "countdown-heldout-000512", "source": "countdown", "nums": [4, 4, 5, 13], "target": 61, "question": "Using the numbers 4, 4, 5, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(4 + 5) + (4 * 13)"}
{"id": "countdown-heldout-000513", "source": "countdown", "nums": [3, 13, 14, 16], "target": 84, "question": "Using the numbers 3, 13, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "14 * (16 + (3 - 13))"}
{"id": "countdown-heldout-000514", "source": "countdown", "nums": [2, 17, 20, 25], "target": 82, "question": "Using the numbers 2, 17, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(2 * 20) + (17 + 25)"}
{"id": "countdown-heldout-000515", "source": "countdown", "nums": [3, 3, 10, 15], "target": 95, "question": "Using the numbers 3, 3, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "15 * (3 + (10 / 3))"}
{"id": "countdown-heldout-000516", "source": "countdown", "nums": [5, 5, 14, 25], "target": 13, "question": "Using the numbers 5, 5, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "14 - (25 / (5 * 5))"}
{"id": "countdown-heldout-000517", "source": "countdown", "nums": [4, 16, 16, 20], "target": 27, "question": "Using the numbers 4, 16, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(16 + 16) - (20 / 4)"}
{"id": "countdown-heldout-000518", "source": "countdown", "nums": [1, 12, 13, 17], "target": 52, "question": "Using the numbers 1, 12, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(1 + 12) * (17 - 13)"}
{"id": "countdown-heldout-000519", "source": "countdown", "nums": [2, 5, 9, 17], "target": 40, "question": "Using the numbers 2, 5, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(2 * 9) + (5 + 17)"}
{"id": "countdown-heldout-000520", "source": "countdown", "nums": [2, 8, 16, 20], "target": 19, "question": "Using the numbers 2, 8, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "20 - (16 / (2 * 8))"}
{"id": "countdown-heldout-000521", "source": "countdown", "nums": [2, 3, 12, 23], "target": 35, "question": "Using the numbers 2, 3, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "23 - (12 * (2 - 3))"}
{"id": "countdown-heldout-000522", "source": "countdown", "nums": [7, 10, 14, 17], "target": 11, "question": "Using the numbers 7, 10, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(7 * (14 - 10)) - 17"}
{"id": "countdown-heldout-000523", "source": "countdown", "nums": [5, 5, 11, 19], "target": 66, "question": "Using the numbers 5, 5, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "11 * ((5 * 5) - 19)"}
{"id": "countdown-heldout-000524", "source": "countdown", "nums": [15, 18, 21, 21], "target": 32, "question": "Using the numbers 15, 18, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(15 + 18) - (21 / 21)"}
{"id": "countdown-heldout-000525", "source": "countdown", "nums": [12, 19, 23, 25], "target": 15, "question": "Using the numbers 12, 19, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "19 - ((23 + 25) / 12)"}
{"id": "countdown-heldout-000526", "source": "countdown", "nums": [3, 4, 10, 23], "target": 97, "question": "Using the numbers 3, 4, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(10 * (3 * 4)) - 23"}
{"id": "countdown-heldout-000527", "source": "countdown", "nums": [1, 4, 11, 16], "target": 59, "question": "Using the numbers 1, 4, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "11 - (16 * (1 - 4))"}
{"id": "countdown-heldout-000528", "source": "countdown", "nums": [3, 14, 14, 19], "target": 38, "question": "Using the numbers 3, 14, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "19 * (3 - (14 / 14))"}
{"id": "countdown-heldout-000529", "source": "countdown", "nums": [2, 5, 9, 15], "target": 82, "question": "Using the numbers 2, 5, 9, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(5 * 15) - (2 - 9)"}
{"id": "countdown-heldout-000530", "source": "countdown", "nums": [3, 7, 12, 18], "target": 12, "question": "Using the numbers 3, 7, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "12 * (7 - (18 / 3))"}
{"id": "countdown-heldout-000531", "source": "countdown", "nums": [3, 7, 19, 21], "target": 12, "question": "Using the numbers 3, 7, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(3 + 7) - (19 - 21)"}
{"id": "countdown-heldout-000532", "source": "countdown", "nums": [10, 12, 19, 24], "target": 72, "question": "Using the numbers 10, 12, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "24 * ((10 + 12) - 19)"}
{"id": "countdown-heldout-000533", "source": "countdown", "nums": [5, 9, 14, 18], "target": 21, "question": "Using the numbers 5, 9, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(5 + 14) + (18 / 9)"}
{"id": "countdown-heldout-000534", "source": "countdown", "nums": [3, 4, 5, 9], "target": 53, "question": "Using the numbers 3, 4, 5, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "5 + (4 * (3 + 9))"}
{"id": "countdown-heldout-000535", "source": "countdown", "nums": [11, 15, 16, 24], "target": 66, "question": "Using the numbers 11, 15, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(11 + 15) + (16 + 24)"}
{"id": "countdown-heldout-000536", "source": "countdown", "nums": [7, 8, 19, 24], "target": 99, "question": "Using the numbers 7, 8, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(7 * 8) + (19 + 24)"}
{"id": "countdown-heldout-000537", "source": "countdown", "nums": [12, 18, 19, 21], "target": 23, "question": "Using the numbers 12, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "19 - (12 / (18 - 21))"}
{"id": "countdown-heldout-000538", "source": "countdown", "nums": [2, 22, 23, 25], "target": 88, "question": "Using the numbers 2, 22, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(2 * 22) * (25 - 23)"}
{"id": "countdown-heldout-000539", "source": "countdown", "nums": [5, 6, 11, 18], "target": 88, "question": "Using the numbers 5, 6, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "11 * (5 + (18 / 6))"}
{"id": "countdown-heldout-000540", "source": "countdown", "nums": [12, 14, 21, 23], "target": 25, "question": "Using the numbers 12, 14, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(23 * (14 - 12)) - 21"}
{"id": "countdown-heldout-000541", "source": "countdown", "nums": [9, 10, 14, 15], "target": 35, "question": "Using the numbers 9, 10, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(10 * (14 - 9)) - 15"}
{"id": "countdown-heldout-000542", "source": "countdown", "nums": [7, 12, 12, 13], "target": 30, "question": "Using the numbers 7, 12, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(12 + 13) - (7 - 12)"}
{"id": "countdown-heldout-000543", "source": "countdown", "nums": [5, 21, 25, 25], "target": 34, "question": "Using the numbers 5, 21, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(5 - 21) + (25 + 25)"}
{"id": "countdown-heldout-000544", "source": "countdown", "nums": [6, 8, 17, 20], "target": 23, "question": "Using the numbers 6, 8, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(17 + 20) - (6 + 8)"}
{"id": "countdown-heldout-000545", "source": "countdown", "nums": [10, 15, 15, 21], "target": 21, "question": "Using the numbers 10, 15, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "21 + (10 * (15 - 15))"}
{"id": "countdown-heldout-000546", "source": "countdown", "nums": [1, 4, 9, 17], "target": 29, "question": "Using the numbers 1, 4, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(9 + 17) - (1 - 4)"}
{"id": "countdown-heldout-000547", "source": "countdown", "nums": [2, 3, 5, 24], "target": 75, "question": "Using the numbers 2, 3, 5, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(3 * 24) - (2 - 5)"}
{"id": "countdown-heldout-000548", "source": "countdown", "nums": [5, 23, 23, 23], "target": 17, "question": "Using the numbers 5, 23, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(23 - 5) - (23 / 23)"}
{"id": "countdown-heldout-000549", "source": "countdown", "nums": [5, 12, 13, 20], "target": 24, "question": "Using the numbers 5, 12, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(5 + 12) - (13 - 20)"}
{"id": "countdown-heldout-000550", "source": "countdown", "nums": [2, 5, 9, 25], "target": 92, "question": "Using the numbers 2, 5, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(2 - 25) * (5 - 9)"}
{"id": "countdown-heldout-000551", "source": "countdown", "nums": [10, 11, 23, 23], "target": 69, "question": "Using the numbers 10, 11, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(10 + 23) / (11 / 23)"}
{"id": "countdown-heldout-000552", "source": "countdown", "nums": [2, 7, 14, 20], "target": 70, "question": "Using the numbers 2, 7, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(14 - 7) / (2 / 20)"}
{"id": "countdown-heldout-000553", "source": "countdown", "nums": [2, 7, 10, 21], "target": 48, "question": "Using the numbers 2, 7, 10, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 * 10) + (7 + 21)"}
{"id": "countdown-heldout-000554", "source": "countdown", "nums": [1, 4, 18, 22], "target": 51, "question": "Using the numbers 1, 4, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(1 - 22) + (4 * 18)"}
{"id": "countdown-heldout-000555", "source": "countdown", "nums": [10, 10, 12, 13], "target": 45, "question": "Using the numbers 10, 10, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(10 + 10) + (12 + 13)"}
{"id": "countdown-heldout-000556", "source": "countdown", "nums": [12, 16, 17, 24], "target": 68, "question": "Using the numbers 12, 16, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "17 * ((12 + 16) - 24)"}
{"id": "countdown-heldout-000557", "source": "countdown", "nums": [3, 15, 19, 25], "target": 71, "question": "Using the numbers 3, 15, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(3 * 25) + (15 - 19)"}
{"id": "countdown-heldout-000558", "source": "countdown", "nums": [8, 19, 21, 24], "target": 64, "question": "Using the numbers 8, 19, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(8 + 24) * (21 - 19)"}
{"id": "countdown-heldout-000559", "source": "countdown", "nums": [2, 2, 8, 15], "target": 92, "question": "Using the numbers 2, 2, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(2 + 2) * (8 + 15)"}
{"id": "countdown-heldout-000560", "source": "countdown", "nums": [1, 6, 8, 23], "target": 91, "question": "Using the numbers 1, 6, 8, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "1 - (6 * (8 - 23))"}
{"id": "countdown-heldout-000561", "source": "countdown", "nums": [4, 11, 13, 18], "target": 32, "question": "Using the numbers 4, 11, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(18 * (13 - 11)) - 4"}
{"id": "countdown-heldout-000562", "source": "countdown", "nums": [1, 2, 10, 17], "target": 42, "question": "Using the numbers 1, 2, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "10 - (2 * (1 - 17))"}
{"id": "countdown-heldout-000563", "source": "countdown", "nums": [1, 11, 22, 25], "target": 26, "question": "Using the numbers 1, 11, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(22 / 11) - (1 - 25)"}
{"id": "countdown-heldout-000564", "source": "countdown", "nums": [3, 9, 10, 24], "target": 31, "question": "Using the numbers 3, 9, 10, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(10 + 24) - (9 / 3)"}
{"id": "countdown-heldout-000565", "source": "countdown", "nums": [3, 8, 9, 20], "target": 12, "question": "Using the numbers 3, 8, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(8 * 9) - (3 * 20)"}
{"id": "countdown-heldout-000566", "source": "countdown", "nums": [6, 9, 14, 16], "target": 56, "question": "Using the numbers 6, 9, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(6 * 9) - (14 - 16)"}
{"id": "countdown-heldout-000567", "source": "countdown", "nums": [4, 19, 24, 24], "target": 100, "question": "Using the numbers 4, 19, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(4 - 24) * (19 - 24)"}
{"id": "countdown-heldout-000568", "source": "countdown", "nums": [2, 6, 9, 11], "target": 78, "question": "Using the numbers 2, 6, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "6 * ((2 * 11) - 9)"}
{"id": "countdown-heldout-000569", "source": "countdown", "nums": [2, 4, 5, 15], "target": 66, "question": "Using the numbers 2, 4, 5, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "15 * (4 + (2 / 5))"}
{"id": "countdown-heldout-000570", "source": "countdown", "nums": [1, 12, 13, 25], "target": 50, "question": "Using the numbers 1, 12, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "25 * (13 + (1 - 12))"}
{"id": "countdown-heldout-000571", "source": "countdown", "nums": [6, 18, 23, 24], "target": 59, "question": "Using the numbers 6, 18, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(23 + 24) - (6 - 18)"}
{"id": "countdown-heldout-000572", "source": "countdown", "nums": [2, 11, 15, 18], "target": 88, "question": "Using the numbers 2, 11, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "2 * (18 + (11 + 15))"}
{"id": "countdown-heldout-000573", "source": "countdown", "nums": [4, 6, 15, 19], "target": 75, "question": "Using the numbers 4, 6, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "15 * ((4 * 6) - 19)"}
{"id": "countdown-heldout-000574", "source": "countdown", "nums": [3, 10, 15, 17], "target": 18, "question": "Using the numbers 3, 10, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(3 * 15) - (10 + 17)"}
{"id": "countdown-heldout-000575", "source": "countdown", "nums": [2, 16, 20, 25], "target": 54, "question": "Using the numbers 2, 16, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(2 * 25) - (16 - 20)"}
{"id": "countdown-heldout-000576", "source": "countdown", "nums": [3, 4, 5, 8], "target": 61, "question": "Using the numbers 3, 4, 5, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "5 + (8 * (3 + 4))"}
{"id": "countdown-heldout-000577", "source": "countdown", "nums": [3, 8, 10, 14], "target": 64, "question": "Using the numbers 3, 8, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "14 - (10 * (3 - 8))"}
{"id": "countdown-heldout-000578", "source": "countdown", "nums": [10, 14, 14, 24], "target": 33, "question": "Using the numbers 10, 14, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(10 + 24) - (14 / 14)"}
{"id": "countdown-heldout-000579", "source": "countdown", "nums": [1, 7, 9, 11], "target": 81, "question": "Using the numbers 1, 7, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "11 + (7 * (1 + 9))"}
{"id": "countdown-heldout-000580", "source": "countdown", "nums": [2, 18, 21, 21], "target": 14, "question": "Using the numbers 2, 18, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(2 * 21) / (21 - 18)"}
{"id": "countdown-heldout-000581", "source": "countdown", "nums": [2, 9, 10, 10], "target": 16, "question": "Using the numbers 2, 9, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "2 * (9 - (10 / 10))"}
{"id": "countdown-heldout-000582", "source": "countdown", "nums": [3, 4, 16, 18], "target": 41, "question": "Using the numbers 3, 4, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(3 + 4) + (16 + 18)"}
{"id": "countdown-heldout-000583", "source": "countdown", "nums": [5, 13, 15, 17], "target": 16, "question": "Using the numbers 5, 13, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(5 + 13) + (15 - 17)"}
{"id": "countdown-heldout-000584", "source": "countdown", "nums": [2, 6, 17, 19], "target": 67, "question": "Using the numbers 2, 6, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "17 + (2 * (6 + 19))"}
{"id": "countdown-heldout-000585", "source": "countdown", "nums": [2, 12, 20, 25], "target": 16, "question": "Using the numbers 2, 12, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "12 / (2 - (25 / 20))"}
{"id": "countdown-heldout-000586", "source": "countdown", "nums": [3, 8, 16, 17], "target": 22, "question": "Using the numbers 3, 8, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(16 + 17) - (3 + 8)"}
{"id": "countdown-heldout-000587", "source": "countdown", "nums": [5, 15, 16, 18], "target": 91, "question": "Using the numbers 5, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(5 * 18) - (15 - 16)"}
{"id": "countdown-heldout-000588", "source": "countdown", "nums": [6, 8, 10, 15], "target": 62, "question": "Using the numbers 6, 8, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(8 * (15 - 6)) - 10"}
{"id": "countdown-heldout-000589", "source": "countdown", "nums": [6, 7, 12, 19], "target": 43, "question": "Using the numbers 6, 7, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(7 * (19 - 12)) - 6"}
{"id": "countdown-heldout-000590", "source": "countdown", "nums": [8, 9, 10, 19], "target": 27, "question": "Using the numbers 8, 9, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(8 + 19) * (10 - 9)"}
{"id": "countdown-heldout-000591", "source": "countdown", "nums": [1, 5, 9, 19], "target": 26, "question": "Using the numbers 1, 5, 9, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(9 * (1 * 5)) - 19"}
{"id": "countdown-heldout-000592", "source": "countdown", "nums": [1, 5, 10, 20], "target": 11, "question": "Using the numbers 1, 5, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "1 + (20 * (5 / 10))"}
{"id": "countdown-heldout-000593", "source": "countdown", "nums": [4, 11, 15, 19], "target": 72, "question": "Using the numbers 4, 11, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(4 * 19) + (11 - 15)"}
{"id": "countdown-heldout-000594", "source": "countdown", "nums": [10, 10, 15, 20], "target": 25, "question": "Using the numbers 10, 10, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(10 + 10) - (15 - 20)"}
{"id": "countdown-heldout-000595", "source": "countdown", "nums": [2, 9, 14, 23], "target": 60, "question": "Using the numbers 2, 9, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(2 * 14) + (9 + 23)"}
{"id": "countdown-heldout-000596", "source": "countdown", "nums": [3, 5, 6, 9], "target": 60, "question": "Using the numbers 3, 5, 6, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "5 * (9 - (3 - 6))"}
{"id": "countdown-heldout-000597", "source": "countdown", "nums": [1, 1, 20, 25], "target": 25, "question": "Using the numbers 1, 1, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "25 + (20 * (1 - 1))"}
{"id": "countdown-heldout-000598", "source": "countdown", "nums": [7, 18, 19, 24], "target": 59, "question": "Using the numbers 7, 18, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "((18 * 24) - 19) / 7"}
{"id": "countdown-heldout-000599", "source": "countdown", "nums": [9, 9, 19, 25], "target": 65, "question": "Using the numbers 9, 9, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(9 * (19 - 9)) - 25"}
{"id": "countdown-heldout-000600", "source": "countdown", "nums": [2, 11, 19, 20], "target": 12, "question": "Using the numbers 2, 11, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(2 + 11) + (19 - 20)"}
{"id": "countdown-heldout-000601", "source": "countdown", "nums": [2, 10, 11, 17], "target": 33, "question": "Using the numbers 2, 10, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "11 * ((2 * 10) - 17)"}
{"id": "countdown-heldout-000602", "source": "countdown", "nums": [1, 3, 5, 6], "target": 26, "question": "Using the numbers 1, 3, 5, 6 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(5 * 6) - (1 + 3)"}
{"id": "countdown-heldout-000603", "source": "countdown", "nums": [6, 9, 11, 17], "target": 46, "question": "Using the numbers 6, 9, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(6 + 17) * (11 - 9)"}
{"id": "countdown-heldout-000604", "source": "countdown", "nums": [2, 3, 18, 22], "target": 16, "question": "Using the numbers 2, 3, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "((3 * 18) - 22) / 2"}
{"id": "countdown-heldout-000605", "source": "countdown", "nums": [8, 10, 10, 16], "target": 12, "question": "Using the numbers 8, 10, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(8 + 10) + (10 - 16)"}
{"id": "countdown-heldout-000606", "source": "countdown", "nums": [12, 16, 20, 22], "target": 22, "question": "Using the numbers 12, 16, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "20 - (12 / (16 - 22))"}
{"id": "countdown-heldout-000607", "source": "countdown", "nums": [3, 5, 11, 25], "target": 50, "question": "Using the numbers 3, 5, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(11 - 5) / (3 / 25)"}
{"id": "countdown-heldout-000608", "source": "countdown", "nums": [1, 8, 14, 20], "target": 48, "question": "Using the numbers 1, 8, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(1 * 8) * (20 - 14)"}
{"id": "countdown-heldout-000609", "source": "countdown", "nums": [2, 5, 14, 17], "target": 52, "question": "Using the numbers 2, 5, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "17 + (14 / (2 / 5))"}
{"id": "countdown-heldout-000610", "source": "countdown", "nums": [6, 7, 9, 14], "target": 52, "question": "Using the numbers 6, 7, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(6 * 9) - (14 / 7)"}
{"id": "countdown-heldout-000611", "source": "countdown", "nums": [6, 11, 20, 21], "target": 33, "question": "Using the numbers 6, 11, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(6 * (20 - 11)) - 21"}
{"id": "countdown-heldout-000612", "source": "countdown", "nums": [16, 17, 19, 24], "target": 80, "question": "Using the numbers 16, 17, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(16 + 24) * (19 - 17)"}
{"id": "countdown-heldout-000613", "source": "countdown", "nums": [4, 6, 17, 22], "target": 78, "question": "Using the numbers 4, 6, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(6 - 4) * (17 + 22)"}
{"id": "countdown-heldout-000614", "source": "countdown", "nums": [5, 9, 11, 23], "target": 67, "question": "Using the numbers 5, 9, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "23 - (11 * (5 - 9))"}
{"id": "countdown-heldout-000615", "source": "countdown", "nums": [4, 17, 21, 25], "target": 83, "question": "Using the numbers 4, 17, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "((17 * 21) - 25) / 4"}
{"id": "countdown-heldout-000616", "source": "countdown", "nums": [4, 5, 9, 24], "target": 66, "question": "Using the numbers 4, 5, 9, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "24 * (5 - (9 / 4))"}
{"id": "countdown-heldout-000617", "source": "countdown", "nums": [1, 11, 12, 20], "target": 80, "question": "Using the numbers 1, 11, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(1 - 11) * (12 - 20)"}
{"id": "countdown-heldout-000618", "source": "countdown", "nums": [2, 15, 16, 18], "target": 11, "question": "Using the numbers 2, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(16 - 18) - (2 - 15)"}
{"id": "countdown-heldout-000619", "source": "countdown", "nums": [1, 2, 4, 11], "target": 24, "question": "Using the numbers 1, 2, 4, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(1 + 11) / (2 / 4)"}
{"id": "countdown-heldout-000620", "source": "countdown", "nums": [7, 15, 16, 18], "target": 64, "question": "Using the numbers 7, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "16 * ((7 + 15) - 18)"}
{"id": "countdown-heldout-000621", "source": "countdown", "nums": [18, 20, 24, 25], "target": 68, "question": "Using the numbers 18, 20, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(20 * 25) - (18 * 24)"}
{"id": "countdown-heldout-000622", "source": "countdown", "nums": [1, 4, 14, 23], "target": 36, "question": "Using the numbers 1, 4, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(1 * 4) * (23 - 14)"}
{"id": "countdown-heldout-000623", "source": "countdown", "nums": [14, 16, 16, 22], "target": 14, "question": "Using the numbers 14, 16, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "22 + (16 / (14 - 16))"}
{"id": "countdown-heldout-000624", "source": "countdown", "nums": [11, 14, 18, 22], "target": 45, "question": "Using the numbers 11, 14, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(14 * (22 - 18)) - 11"}
{"id": "countdown-heldout-000625", "source": "countdown", "nums": [11, 19, 22, 25], "target": 77, "question": "Using the numbers 11, 19, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(11 + 19) + (22 + 25)"}
{"id": "countdown-heldout-000626", "source": "countdown", "nums": [3, 8, 10, 10], "target": 100, "question": "Using the numbers 3, 8, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(10 * (3 + 8)) - 10"}
{"id": "countdown-heldout-000627", "source": "countdown", "nums": [2, 17, 21, 21], "target": 20, "question": "Using the numbers 2, 17, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(2 + 17) + (21 / 21)"}
{"id": "countdown-heldout-000628", "source": "countdown", "nums": [6, 8, 8, 15], "target": 44, "question": "Using the numbers 6, 8, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "8 * (8 - (15 / 6))"}
{"id": "countdown-heldout-000629", "source": "countdown", "nums": [4, 7, 21, 25], "target": 96, "question": "Using the numbers 4, 7, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "21 - (25 * (4 - 7))"}
{"id": "countdown-heldout-000630", "source": "countdown", "nums": [11, 11, 14, 23], "target": 36, "question": "Using the numbers 11, 11, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(14 + 23) - (11 / 11)"}
{"id": "countdown-heldout-000631", "source": "countdown", "nums": [8, 14, 15, 23], "target": 48, "question": "Using the numbers 8, 14, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(8 - 14) * (15 - 23)"}
{"id": "countdown-heldout-000632", "source": "countdown", "nums": [3, 10, 17, 23], "target": 36, "question": "Using the numbers 3, 10, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(3 * 10) - (17 - 23)"}
{"id": "countdown-heldout-000633", "source": "countdown", "nums": [2, 11, 17, 23], "target": 33, "question": "Using the numbers 2, 11, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(23 - 17) / (2 / 11)"}
{"id": "countdown-heldout-000634", "source": "countdown", "nums": [1, 2, 10, 15], "target": 23, "question": "Using the numbers 1, 2, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(10 + 15) - (1 * 2)"}
{"id": "countdown-heldout-000635", "source": "countdown", "nums": [3, 4, 10, 15], "target": 60, "question": "Using the numbers 3, 4, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(3 * 4) * (15 - 10)"}
{"id": "countdown-heldout-000636", "source": "countdown", "nums": [2, 5, 17, 18], "target": 94, "question": "Using the numbers 2, 5, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "(5 * 17) + (18 / 2)"}
{"id": "countdown-heldout-000637", "source": "countdown", "nums": [5, 8, 19, 22], "target": 39, "question": "Using the numbers 5, 8, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(5 + 8) * (22 - 19)"}
{"id": "countdown-heldout-000638", "source": "countdown", "nums": [1, 15, 20, 24], "target": 75, "question": "Using the numbers 1, 15, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "15 * (24 + (1 - 20))"}
{"id": "countdown-heldout-000639", "source": "countdown", "nums": [1, 5, 10, 14], "target": 63, "question": "Using the numbers 1, 5, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(5 * 10) - (1 - 14)"}
{"id": "countdown-heldout-000640", "source": "countdown", "nums": [4, 9, 12, 15], "target": 87, "question": "Using the numbers 4, 9, 12, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "12 - (15 * (4 - 9))"}
{"id": "countdown-heldout-000641", "source": "countdown", "nums": [9, 11, 11, 16], "target": 21, "question": "Using the numbers 9, 11, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(16 * (11 - 9)) - 11"}
{"id": "countdown-heldout-000642", "source": "countdown", "nums": [6, 14, 16, 19], "target": 22, "question": "Using the numbers 6, 14, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "19 - (6 / (14 - 16))"}
{"id": "countdown-heldout-000643", "source": "countdown", "nums": [1, 2, 15, 22], "target": 27, "question": "Using the numbers 1, 2, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "22 + (15 / (1 + 2))"}
{"id": "countdown-heldout-000644", "source": "countdown", "nums": [4, 15, 22, 25], "target": 78, "question": "Using the numbers 4, 15, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(4 * 22) + (15 - 25)"}
{"id": "countdown-heldout-000645", "source": "countdown", "nums": [2, 11, 19, 20], "target": 91, "question": "Using the numbers 2, 11, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(20 / (2 / 11)) - 19"}
{"id": "countdown-heldout-000646", "source": "countdown", "nums": [7, 10, 11, 18], "target": 10, "question": "Using the numbers 7, 10, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(7 + 10) + (11 - 18)"}
{"id": "countdown-heldout-000647", "source": "countdown", "nums": [6, 18, 20, 25], "target": 57, "question": "Using the numbers 6, 18, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(20 + 25) - (6 - 18)"}
{"id": "countdown-heldout-000648", "source": "countdown", "nums": [12, 14, 17, 25], "target": 39, "question": "Using the numbers 12, 14, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(12 - 25) * (14 - 17)"}
{"id": "countdown-heldout-000649", "source": "countdown", "nums": [2, 8, 18, 20], "target": 62, "question": "Using the numbers 2, 8, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(20 / (2 / 8)) - 18"}
{"id": "countdown-heldout-000650", "source": "countdown", "nums": [4, 14, 17, 24], "target": 25, "question": "Using the numbers 4, 14, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(4 + 14) - (17 - 24)"}
{"id": "countdown-heldout-000651", "source": "countdown", "nums": [7, 8, 14, 17], "target": 32, "question": "Using the numbers 7, 8, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(14 + 17) - (7 - 8)"}
{"id": "countdown-heldout-000652", "source": "countdown", "nums": [12, 16, 16, 24], "target": 68, "question": "Using the numbers 12, 16, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(12 + 16) + (16 + 24)"}
{"id": "countdown-heldout-000653", "source": "countdown", "nums": [1, 15, 19, 24], "target": 20, "question": "Using the numbers 1, 15, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(1 * 15) - (19 - 24)"}
{"id": "countdown-heldout-000654", "source": "countdown", "nums": [7, 9, 14, 16], "target": 11, "question": "Using the numbers 7, 9, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(9 * (16 - 14)) - 7"}
{"id": "countdown-heldout-000655", "source": "countdown", "nums": [3, 14, 16, 24], "target": 30, "question": "Using the numbers 3, 14, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "24 - (3 * (14 - 16))"}
{"id": "countdown-heldout-000656", "source": "countdown", "nums": [8, 14, 17, 24], "target": 47, "question": "Using the numbers 8, 14, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(17 + 24) - (8 - 14)"}
{"id": "countdown-heldout-000657", "source": "countdown", "nums": [1, 13, 16, 19], "target": 11, "question": "Using the numbers 1, 13, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(1 + 13) + (16 - 19)"}
{"id": "countdown-heldout-000658", "source": "countdown", "nums": [1, 6, 7, 14], "target": 28, "question": "Using the numbers 1, 6, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(1 + 6) + (7 + 14)"}
{"id": "countdown-heldout-000659", "source": "countdown", "nums": [1, 11, 12, 18], "target": 85, "question": "Using the numbers 1, 11, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "1 - (12 * (11 - 18))"}
{"id": "countdown-heldout-000660", "source": "countdown", "nums": [2, 6, 19, 20], "target": 13, "question": "Using the numbers 2, 6, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(2 * 6) - (19 - 20)"}
{"id": "countdown-heldout-000661", "source": "countdown", "nums": [1, 7, 10, 12], "target": 21, "question": "Using the numbers 1, 7, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "7 * (12 + (1 - 10))"}
{"id": "countdown-heldout-000662", "source": "countdown", "nums": [7, 14, 22, 24], "target": 21, "question": "Using the numbers 7, 14, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(7 * 24) / (22 - 14)"}
{"id": "countdown-heldout-000663", "source": "countdown", "nums": [1, 9, 14, 24], "target": 81, "question": "Using the numbers 1, 9, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "9 * (24 - (1 + 14))"}
{"id": "countdown-heldout-000664", "source": "countdown", "nums": [7, 12, 14, 19], "target": 29, "question": "Using the numbers 7, 12, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(12 + 19) - (14 / 7)"}
{"id": "countdown-heldout-000665", "source": "countdown", "nums": [8, 12, 23, 25], "target": 67, "question": "Using the numbers 8, 12, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(23 * (12 - 8)) - 25"}
{"id": "countdown-heldout-000666", "source": "countdown", "nums": [5, 12, 20, 23], "target": 21, "question": "Using the numbers 5, 12, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(5 - 12) * (20 - 23)"}
{"id": "countdown-heldout-000667", "source": "countdown", "nums": [1, 7, 10, 16], "target": 93, "question": "Using the numbers 1, 7, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "16 + (7 * (1 + 10))"}
{"id": "countdown-heldout-000668", "source": "countdown", "nums": [4, 13, 15, 22], "target": 86, "question": "Using the numbers 4, 13, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(4 * 22) + (13 - 15)"}
{"id": "countdown-heldout-000669", "source": "countdown", "nums": [9, 10, 14, 22], "target": 17, "question": "Using the numbers 9, 10, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(14 + 22) - (9 + 10)"}
{"id": "countdown-heldout-000670", "source": "countdown", "nums": [10, 14, 15, 20], "target": 11, "question": "Using the numbers 10, 14, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(15 + 20) - (10 + 14)"}
{"id": "countdown-heldout-000671", "source": "countdown", "nums": [4, 6, 12, 19], "target": 43, "question": "Using the numbers 4, 6, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "19 - (12 * (4 - 6))"}
{"id": "countdown-heldout-000672", "source": "countdown", "nums": [11, 20, 23, 25], "target": 60, "question": "Using the numbers 11, 20, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(11 - 23) * (20 - 25)"}
{"id": "countdown-heldout-000673", "source": "countdown", "nums": [10, 11, 16, 20], "target": 50, "question": "Using the numbers 10, 11, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(10 - 20) * (11 - 16)"}
{"id": "countdown-heldout-000674", "source": "countdown", "nums": [3, 9, 13, 15], "target": 34, "question": "Using the numbers 3, 9, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(13 + 15) - (3 - 9)"}
{"id": "countdown-heldout-000675", "source": "countdown", "nums": [3, 5, 6, 12], "target": 59, "question": "Using the numbers 3, 5, 6, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "5 - (6 * (3 - 12))"}
{"id": "countdown-heldout-000676", "source": "countdown", "nums": [3, 4, 7, 17], "target": 22, "question": "Using the numbers 3, 4, 7, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(3 * 4) - (7 - 17)"}
{"id": "countdown-heldout-000677", "source": "countdown", "nums": [2, 4, 5, 7], "target": 34, "question": "Using the numbers 2, 4, 5, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(2 * 7) + (4 * 5)"}
{"id": "countdown-heldout-000678", "source": "countdown", "nums": [2, 9, 14, 22], "target": 90, "question": "Using the numbers 2, 9, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "9 * (22 + (2 - 14))"}
{"id": "countdown-heldout-000679", "source": "countdown", "nums": [4, 5, 6, 20], "target": 49, "question": "Using the numbers 4, 5, 6, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(4 * 6) + (5 + 20)"}
{"id": "countdown-heldout-000680", "source": "countdown", "nums": [7, 9, 11, 14], "target": 17, "question": "Using the numbers 7, 9, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(14 * (9 - 7)) - 11"}
{"id": "countdown-heldout-000681", "source": "countdown", "nums": [5, 14, 23, 25], "target": 17, "question": "Using the numbers 5, 14, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(5 + 14) + (23 - 25)"}
{"id": "countdown-heldout-000682", "source": "countdown", "nums": [6, 14, 18, 20], "target": 72, "question": "Using the numbers 6, 14, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(6 - 18) * (14 - 20)"}
{"id": "countdown-heldout-000683", "source": "countdown", "nums": [14, 19, 21, 22], "target": 32, "question": "Using the numbers 14, 19, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(14 + 19) + (21 - 22)"}
{"id": "countdown-heldout-000684", "source": "countdown", "nums": [17, 18, 19, 20], "target": 11, "question": "Using the numbers 17, 18, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "20 + (18 / (17 - 19))"}
{"id": "countdown-heldout-000685", "source": "countdown", "nums": [2, 10, 13, 19], "target": 37, "question": "Using the numbers 2, 10, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(10 / 2) + (13 + 19)"}
{"id": "countdown-heldout-000686", "source": "countdown", "nums": [7, 10, 14, 15], "target": 13, "question": "Using the numbers 7, 10, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(7 * (14 - 10)) - 15"}
{"id": "countdown-heldout-000687", "source": "countdown", "nums": [3, 15, 20, 25], "target": 63, "question": "Using the numbers 3, 15, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(3 + 15) + (20 + 25)"}
{"id": "countdown-heldout-000688", "source": "countdown", "nums": [1, 13, 15, 20], "target": 64, "question": "Using the numbers 1, 13, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(13 * (20 - 15)) - 1"}
{"id": "countdown-heldout-000689", "source": "countdown", "nums": [19, 22, 23, 23], "target": 49, "question": "Using the numbers 19, 22, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(23 + 23) - (19 - 22)"}
{"id": "countdown-heldout-000690", "source": "countdown", "nums": [1, 3, 5, 21], "target": 75, "question": "Using the numbers 1, 3, 5, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "3 * (21 - (1 - 5))"}
{"id": "countdown-heldout-000691", "source": "countdown", "nums": [2, 2, 10, 20], "target": 90, "question": "Using the numbers 2, 2, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "10 + (20 * (2 + 2))"}
{"id": "countdown-heldout-000692", "source": "countdown", "nums": [6, 20, 21, 21], "target": 68, "question": "Using the numbers 6, 20, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(6 + 20) + (21 + 21)"}
{"id": "countdown-heldout-000693", "source": "countdown", "nums": [3, 7, 10, 12], "target": 28, "question": "Using the numbers 3, 7, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(10 * (7 - 3)) - 12"}
{"id": "countdown-heldout-000694", "source": "countdown", "nums": [12, 15, 19, 22], "target": 17, "question": "Using the numbers 12, 15, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "12 - (15 / (19 - 22))"}
{"id": "countdown-heldout-000695", "source": "countdown", "nums": [1, 6, 10, 19], "target": 78, "question": "Using the numbers 1, 6, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(6 * 10) - (1 - 19)"}
{"id": "countdown-heldout-000696", "source": "countdown", "nums": [6, 13, 14, 23], "target": 84, "question": "Using the numbers 6, 13, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(13 + 23) / (6 / 14)"}
{"id": "countdown-heldout-000697", "source": "countdown", "nums": [2, 9, 12, 17], "target": 47, "question": "Using the numbers 2, 9, 12, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(2 * 9) + (12 + 17)"}
{"id": "countdown-heldout-000698", "source": "countdown", "nums": [2, 7, 19, 24], "target": 29, "question": "Using the numbers 2, 7, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(19 + 24) - (2 * 7)"}
{"id": "countdown-heldout-000699", "source": "countdown", "nums": [1, 13, 14, 17], "target": 60, "question": "Using the numbers 1, 13, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(1 + 14) * (17 - 13)"}
{"id": "countdown-heldout-000700", "source": "countdown", "nums": [7, 10, 12, 18], "target": 92, "question": "Using the numbers 7, 10, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(7 * 12) - (10 - 18)"}
{"id": "countdown-heldout-000701", "source": "countdown", "nums": [3, 8, 11, 23], "target": 93, "question": "Using the numbers 3, 8, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(8 * (23 - 11)) - 3"}
{"id": "countdown-heldout-000702", "source": "countdown", "nums": [10, 13, 16, 25], "target": 23, "question": "Using the numbers 10, 13, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "25 - ((10 + 16) / 13)"}
{"id": "countdown-heldout-000703", "source": "countdown", "nums": [5, 7, 15, 22], "target": 52, "question": "Using the numbers 5, 7, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "22 - (15 * (5 - 7))"}
{"id": "countdown-heldout-000704", "source": "countdown", "nums": [8, 9, 11, 18], "target": 74, "question": "Using the numbers 8, 9, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(9 * 18) - (8 * 11)"}
{"id": "countdown-heldout-000705", "source": "countdown", "nums": [2, 3, 8, 17], "target": 33, "question": "Using the numbers 2, 3, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "3 * (17 + (2 - 8))"}
{"id": "countdown-heldout-000706", "source": "countdown", "nums": [1, 6, 9, 14], "target": 93, "question": "Using the numbers 1, 6, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "9 + (14 * (1 * 6))"}
{"id": "countdown-heldout-000707", "source": "countdown", "nums": [3, 8, 14, 25], "target": 97, "question": "Using the numbers 3, 8, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(3 * 25) + (8 + 14)"}
{"id": "countdown-heldout-000708", "source": "countdown", "nums": [7, 8, 19, 21], "target": 58, "question": "Using the numbers 7, 8, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(7 * 8) - (19 - 21)"}
{"id": "countdown-heldout-000709", "source": "countdown", "nums": [1, 3, 4, 17], "target": 54, "question": "Using the numbers 1, 3, 4, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(3 * 17) - (1 - 4)"}
{"id": "countdown-heldout-000710", "source": "countdown", "nums": [7, 11, 16, 25], "target": 74, "question": "Using the numbers 7, 11, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(11 * (16 - 7)) - 25"}
{"id": "countdown-heldout-000711", "source": "countdown", "nums": [10, 12, 20, 25], "target": 43, "question": "Using the numbers 10, 12, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(10 - 12) + (20 + 25)"}
{"id": "countdown-heldout-000712", "source": "countdown", "nums": [7, 11, 20, 25], "target": 13, "question": "Using the numbers 7, 11, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(7 + 11) + (20 - 25)"}
{"id": "countdown-heldout-000713", "source": "countdown", "nums": [14, 14, 16, 17], "target": 76, "question": "Using the numbers 14, 14, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(16 * 17) - (14 * 14)"}
{"id": "countdown-heldout-000714", "source": "countdown", "nums": [1, 1, 2, 22], "target": 11, "question": "Using the numbers 1, 1, 2, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "22 / (2 + (1 - 1))"}
{"id": "countdown-heldout-000715", "source": "countdown", "nums": [3, 5, 16, 17], "target": 80, "question": "Using the numbers 3, 5, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "17 + (3 * (5 + 16))"}
{"id": "countdown-heldout-000716", "source": "countdown", "nums": [1, 5, 19, 25], "target": 81, "question": "Using the numbers 1, 5, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(25 * (5 - 1)) - 19"}
{"id": "countdown-heldout-000717", "source": "countdown", "nums": [6, 17, 19, 23], "target": 19, "question": "Using the numbers 6, 17, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(19 + 23) - (6 + 17)"}
{"id": "countdown-heldout-000718", "source": "countdown", "nums": [5, 5, 7, 17], "target": 45, "question": "Using the numbers 5, 5, 7, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(5 * (17 - 7)) - 5"}
{"id": "countdown-heldout-000719", "source": "countdown", "nums": [12, 14, 15, 21], "target": 33, "question": "Using the numbers 12, 14, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "15 + (21 * (12 / 14))"}
{"id": "countdown-heldout-000720", "source": "countdown", "nums": [2, 14, 17, 24], "target": 49, "question": "Using the numbers 2, 14, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(24 - 17) / (2 / 14)"}
{"id": "countdown-heldout-000721", "source": "countdown", "nums": [10, 15, 19, 20], "target": 38, "question": "Using the numbers 10, 15, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(10 * 19) / (20 - 15)"}
{"id": "countdown-heldout-000722", "source": "countdown", "nums": [2, 4, 5, 21], "target": 23, "question": "Using the numbers 2, 4, 5, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(2 + 21) * (5 - 4)"}
{"id": "countdown-heldout-000723", "source": "countdown", "nums": [6, 10, 18, 21], "target": 28, "question": "Using the numbers 6, 10, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(18 - 10) / (6 / 21)"}
{"id": "countdown-heldout-000724", "source": "countdown", "nums": [8, 8, 16, 23], "target": 30, "question": "Using the numbers 8, 8, 16, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(23 - 8) / (8 / 16)"}
{"id": "countdown-heldout-000725", "source": "countdown", "nums": [4, 12, 23, 23], "target": 36, "question": "Using the numbers 4, 12, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "12 * (4 - (23 / 23))"}
{"id": "countdown-heldout-000726", "source": "countdown", "nums": [5, 9, 15, 20], "target": 86, "question": "Using the numbers 5, 9, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(5 * 15) - (9 - 20)"}
{"id": "countdown-heldout-000727", "source": "countdown", "nums": [5, 11, 15, 19], "target": 33, "question": "Using the numbers 5, 11, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(11 + 19) + (15 / 5)"}
{"id": "countdown-heldout-000728", "source": "countdown", "nums": [4, 15, 19, 23], "target": 39, "question": "Using the numbers 4, 15, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "23 - (4 * (15 - 19))"}
{"id": "countdown-heldout-000729", "source": "countdown", "nums": [1, 11, 18, 21], "target": 77, "question": "Using the numbers 1, 11, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "11 / (1 - (18 / 21))"}
{"id": "countdown-heldout-000730", "source": "countdown", "nums": [4, 7, 13, 18], "target": 16, "question": "Using the numbers 4, 7, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(4 + 7) - (13 - 18)"}
{"id": "countdown-heldout-000731", "source": "countdown", "nums": [8, 10, 10, 17], "target": 25, "question": "Using the numbers 8, 10, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(8 + 10) - (10 - 17)"}
{"id": "countdown-heldout-000732", "source": "countdown", "nums": [9, 12, 13, 22], "target": 40, "question": "Using the numbers 9, 12, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(9 - 13) * (12 - 22)"}
{"id": "countdown-heldout-000733", "source": "countdown", "nums": [6, 14, 17, 22], "target": 15, "question": "Using the numbers 6, 14, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(6 + 14) + (17 - 22)"}
{"id": "countdown-heldout-000734", "source": "countdown", "nums": [2, 3, 4, 19], "target": 26, "question": "Using the numbers 2, 3, 4, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(2 * 19) - (3 * 4)"}
{"id": "countdown-heldout-000735", "source": "countdown", "nums": [4, 6, 8, 25], "target": 62, "question": "Using the numbers 4, 6, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(6 + 25) / (4 / 8)"}
{"id": "countdown-heldout-000736", "source": "countdown", "nums": [12, 12, 16, 21], "target": 48, "question": "Using the numbers 12, 12, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "16 * ((12 + 12) - 21)"}
{"id": "countdown-heldout-000737", "source": "countdown", "nums": [9, 16, 16, 24], "target": 34, "question": "Using the numbers 9, 16, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(9 + 24) + (16 / 16)"}
{"id": "countdown-heldout-000738", "source": "countdown", "nums": [4, 7, 10, 25], "target": 23, "question": "Using the numbers 4, 7, 10, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "25 - ((4 + 10) / 7)"}
{"id": "countdown-heldout-000739", "source": "countdown", "nums": [3, 14, 19, 23], "target": 15, "question": "Using the numbers 3, 14, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "23 - (19 + (3 - 14))"}
{"id": "countdown-heldout-000740", "source": "countdown", "nums": [10, 11, 14, 23], "target": 89, "question": "Using the numbers 10, 11, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(11 * (23 - 14)) - 10"}
{"id": "countdown-heldout-000741", "source": "countdown", "nums": [5, 17, 18, 21], "target": 56, "question": "Using the numbers 5, 17, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "5 - (17 * (18 - 21))"}
{"id": "countdown-heldout-000742", "source": "countdown", "nums": [2, 7, 12, 22], "target": 10, "question": "Using the numbers 2, 7, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "((12 + 22) / 2) - 7"}
{"id": "countdown-heldout-000743", "source": "countdown", "nums": [2, 7, 8, 15], "target": 48, "question": "Using the numbers 2, 7, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "8 * (15 - (2 + 7))"}
{"id": "countdown-heldout-000744", "source": "countdown", "nums": [2, 4, 6, 14], "target": 70, "question": "Using the numbers 2, 4, 6, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "6 + (4 * (2 + 14))"}
{"id": "countdown-heldout-000745", "source": "countdown", "nums": [1, 15, 20, 21], "target": 55, "question": "Using the numbers 1, 15, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(20 + 21) - (1 - 15)"}
{"id": "countdown-heldout-000746", "source": "countdown", "nums": [5, 6, 8, 12], "target": 88, "question": "Using the numbers 5, 6, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "8 * (12 + (5 - 6))"}
{"id": "countdown-heldout-000747", "source": "countdown", "nums": [4, 7, 24, 24], "target": 59, "question": "Using the numbers 4, 7, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(4 + 7) + (24 + 24)"}
{"id": "countdown-heldout-000748", "source": "countdown", "nums": [7, 18, 24, 24], "target": 12, "question": "Using the numbers 7, 18, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(24 / 24) - (7 - 18)"}
{"id": "countdown-heldout-000749", "source": "countdown", "nums": [3, 17, 22, 22], "target": 51, "question": "Using the numbers 3, 17, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(3 * 17) + (22 - 22)"}
{"id": "countdown-heldout-000750", "source": "countdown", "nums": [3, 6, 13, 23], "target": 16, "question": "Using the numbers 3, 6, 13, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(13 * (6 - 3)) - 23"}
{"id": "countdown-heldout-000751", "source": "countdown", "nums": [3, 11, 17, 23], "target": 19, "question": "Using the numbers 3, 11, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(3 * (23 - 11)) - 17"}
{"id": "countdown-heldout-000752", "source": "countdown", "nums": [2, 3, 10, 22], "target": 54, "question": "Using the numbers 2, 3, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(3 * 22) - (2 + 10)"}
{"id": "countdown-heldout-000753", "source": "countdown", "nums": [5, 8, 12, 18], "target": 84, "question": "Using the numbers 5, 8, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(8 * 18) - (5 * 12)"}
{"id": "countdown-heldout-000754", "source": "countdown", "nums": [7, 8, 14, 21], "target": 18, "question": "Using the numbers 7, 8, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(14 - 8) / (7 / 21)"}
{"id": "countdown-heldout-000755", "source": "countdown", "nums": [17, 18, 18, 23], "target": 90, "question": "Using the numbers 17, 18, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(18 * (23 - 17)) - 18"}
{"id": "countdown-heldout-000756", "source": "countdown", "nums": [4, 6, 18, 18], "target": 27, "question": "Using the numbers 4, 6, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "18 - (18 / (4 - 6))"}
{"id": "countdown-heldout-000757", "source": "countdown", "nums": [1, 2, 13, 24], "target": 74, "question": "Using the numbers 1, 2, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(1 * 2) * (13 + 24)"}
{"id": "countdown-heldout-000758", "source": "countdown", "nums": [1, 12, 16, 24], "target": 18, "question": "Using the numbers 1, 12, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(1 * 12) / (16 / 24)"}
{"id": "countdown-heldout-000759", "source": "countdown", "nums": [5, 7, 14, 17], "target": 19, "question": "Using the numbers 5, 7, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(14 + 17) - (5 + 7)"}
{"id": "countdown-heldout-000760", "source": "countdown", "nums": [15, 19, 20, 21], "target": 17, "question": "Using the numbers 15, 19, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "15 + ((19 + 21) / 20)"}
{"id": "countdown-heldout-000761", "source": "countdown", "nums": [8, 13, 20, 23], "target": 18, "question": "Using the numbers 8, 13, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(8 + 13) + (20 - 23)"}
{"id": "countdown-heldout-000762", "source": "countdown", "nums": [5, 14, 17, 23], "target": 59, "question": "Using the numbers 5, 14, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(5 + 14) + (17 + 23)"}
{"id": "countdown-heldout-000763", "source": "countdown", "nums": [2, 10, 13, 18], "target": 94, "question": "Using the numbers 2, 10, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "(10 * 13) - (2 * 18)"}
{"id": "countdown-heldout-000764", "source": "countdown", "nums": [7, 10, 15, 20], "target": 50, "question": "Using the numbers 7, 10, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(15 + 20) / (7 / 10)"}
{"id": "countdown-heldout-000765", "source": "countdown", "nums": [2, 4, 8, 21], "target": 21, "question": "Using the numbers 2, 4, 8, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(8 + 21) - (2 * 4)"}
{"id": "countdown-heldout-000766", "source": "countdown", "nums": [4, 8, 8, 14], "target": 84, "question": "Using the numbers 4, 8, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "14 * (8 - (8 / 4))"}
{"id": "countdown-heldout-000767", "source": "countdown", "nums": [1, 2, 4, 8], "target": 66, "question": "Using the numbers 1, 2, 4, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "2 * (1 + (4 * 8))"}
{"id": "countdown-heldout-000768", "source": "countdown", "nums": [3, 11, 18, 25], "target": 91, "question": "Using the numbers 3, 11, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "25 + (18 / (3 / 11))"}
{"id": "countdown-heldout-000769", "source": "countdown", "nums": [12, 16, 18, 22], "target": 49, "question": "Using the numbers 12, 16, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "16 + (22 / (12 / 18))"}
{"id": "countdown-heldout-000770", "source": "countdown", "nums": [2, 4, 13, 17], "target": 21, "question": "Using the numbers 2, 4, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(17 / (2 / 4)) - 13"}
{"id": "countdown-heldout-000771", "source": "countdown", "nums": [4, 16, 23, 24], "target": 19, "question": "Using the numbers 4, 16, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(4 + 16) + (23 - 24)"}
{"id": "countdown-heldout-000772", "source": "countdown", "nums": [1, 6, 12, 24], "target": 78, "question": "Using the numbers 1, 6, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "6 * (24 + (1 - 12))"}
{"id": "countdown-heldout-000773", "source": "countdown", "nums": [1, 8, 9, 14], "target": 30, "question": "Using the numbers 1, 8, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(9 + 14) - (1 - 8)"}
{"id": "countdown-heldout-000774", "source": "countdown", "nums": [4, 5, 10, 17], "target": 16, "question": "Using the numbers 4, 5, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(4 + 5) - (10 - 17)"}
{"id": "countdown-heldout-000775", "source": "countdown", "nums": [2, 10, 11, 19], "target": 82, "question": "Using the numbers 2, 10, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "2 - (10 * (11 - 19))"}
{"id": "countdown-heldout-000776", "source": "countdown", "nums": [4, 5, 17, 25], "target": 40, "question": "Using the numbers 4, 5, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(5 * (17 - 4)) - 25"}
{"id": "countdown-heldout-000777", "source": "countdown", "nums": [6, 16, 17, 25], "target": 64, "question": "Using the numbers 6, 16, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(6 + 16) + (17 + 25)"}
{"id": "countdown-heldout-000778", "source": "countdown", "nums": [12, 17, 21, 23], "target": 73, "question": "Using the numbers 12, 17, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(12 + 17) + (21 + 23)"}
{"id": "countdown-heldout-000779", "source": "countdown", "nums": [5, 7, 10, 11], "target": 29, "question": "Using the numbers 5, 7, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "7 + (11 / (5 / 10))"}
{"id": "countdown-heldout-000780", "source": "countdown", "nums": [4, 9, 14, 17], "target": 24, "question": "Using the numbers 4, 9, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "4 * ((9 + 14) - 17)"}
{"id": "countdown-heldout-000781", "source": "countdown", "nums": [17, 18, 20, 25], "target": 44, "question": "Using the numbers 17, 18, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(17 - 18) + (20 + 25)"}
{"id": "countdown-heldout-000782", "source": "countdown", "nums": [1, 4, 15, 23], "target": 78, "question": "Using the numbers 1, 4, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(1 - 15) + (4 * 23)"}
{"id": "countdown-heldout-000783", "source": "countdown", "nums": [11, 11, 19, 24], "target": 24, "question": "Using the numbers 11, 11, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "24 + (19 * (11 - 11))"}
{"id": "countdown-heldout-000784", "source": "countdown", "nums": [7, 8, 11, 20], "target": 72, "question": "Using the numbers 7, 8, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(20 * (11 - 7)) - 8"}
{"id": "countdown-heldout-000785", "source": "countdown", "nums": [2, 8, 11, 11], "target": 93, "question": "Using the numbers 2, 8, 11, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(8 * (2 + 11)) - 11"}
{"id": "countdown-heldout-000786", "source": "countdown", "nums": [1, 3, 12, 18], "target": 48, "question": "Using the numbers 1, 3, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "12 - (18 * (1 - 3))"}
{"id": "countdown-heldout-000787", "source": "countdown", "nums": [6, 11, 16, 24], "target": 45, "question": "Using the numbers 6, 11, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(16 + 24) - (6 - 11)"}
{"id": "countdown-heldout-000788", "source": "countdown", "nums": [5, 9, 23, 24], "target": 13, "question": "Using the numbers 5, 9, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(5 + 9) + (23 - 24)"}
{"id": "countdown-heldout-000789", "source": "countdown", "nums": [7, 10, 11, 18], "target": 99, "question": "Using the numbers 7, 10, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(7 * 10) + (11 + 18)"}
{"id": "countdown-heldout-000790", "source": "countdown", "nums": [1, 6, 22, 25], "target": 44, "question": "Using the numbers 1, 6, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "6 / ((25 / 22) - 1)"}
{"id": "countdown-heldout-000791", "source": "countdown", "nums": [6, 9, 21, 24], "target": 18, "question": "Using the numbers 6, 9, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(6 + 9) - (21 - 24)"}
{"id": "countdown-heldout-000792", "source": "countdown", "nums": [2, 8, 13, 19], "target": 15, "question": "Using the numbers 2, 8, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(2 * 13) + (8 - 19)"}
{"id": "countdown-heldout-000793", "source": "countdown", "nums": [8, 14, 21, 25], "target": 88, "question": "Using the numbers 8, 14, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(8 + 14) * (25 - 21)"}
{"id": "countdown-heldout-000794", "source": "countdown", "nums": [2, 7, 19, 20], "target": 35, "question": "Using the numbers 2, 7, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(2 * (7 + 20)) - 19"}
{"id": "countdown-heldout-000795", "source": "countdown", "nums": [2, 5, 7, 11], "target": 58, "question": "Using the numbers 2, 5, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(5 * (2 + 11)) - 7"}
{"id": "countdown-heldout-000796", "source": "countdown", "nums": [2, 3, 14, 15], "target": 73, "question": "Using the numbers 2, 3, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(2 * 14) + (3 * 15)"}
{"id": "countdown-heldout-000797", "source": "countdown", "nums": [15, 16, 19, 23], "target": 54, "question": "Using the numbers 15, 16, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(23 * (19 - 16)) - 15"}
{"id": "countdown-heldout-000798", "source": "countdown", "nums": [5, 7, 10, 17], "target": 50, "question": "Using the numbers 5, 7, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "10 * (17 - (5 + 7))"}
{"id": "countdown-heldout-000799", "source": "countdown", "nums": [2, 5, 18, 24], "target": 90, "question": "Using the numbers 2, 5, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "18 - (24 * (2 - 5))"}
{"id": "countdown-heldout-000800", "source": "countdown", "nums": [4, 10, 16, 16], "target": 41, "question": "Using the numbers 4, 10, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(4 * 10) + (16 / 16)"}
{"id": "countdown-heldout-000801", "source": "countdown", "nums": [5, 13, 14, 23], "target": 94, "question": "Using the numbers 5, 13, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "(13 * (14 - 5)) - 23"}
{"id": "countdown-heldout-000802", "source": "countdown", "nums": [3, 4, 11, 21], "target": 56, "question": "Using the numbers 3, 4, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(11 * (3 + 4)) - 21"}
{"id": "countdown-heldout-000803", "source": "countdown", "nums": [3, 4, 15, 22], "target": 63, "question": "Using the numbers 3, 4, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(3 * 15) - (4 - 22)"}
{"id": "countdown-heldout-000804", "source": "countdown", "nums": [2, 3, 8, 17], "target": 20, "question": "Using the numbers 2, 3, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(8 + 17) - (2 + 3)"}
{"id": "countdown-heldout-000805", "source": "countdown", "nums": [9, 11, 22, 23], "target": 43, "question": "Using the numbers 9, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(9 - 11) + (22 + 23)"}
{"id": "countdown-heldout-000806", "source": "countdown", "nums": [9, 16, 20, 24], "target": 96, "question": "Using the numbers 9, 16, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(16 + 20) / (9 / 24)"}
{"id": "countdown-heldout-000807", "source": "countdown", "nums": [3, 8, 17, 22], "target": 44, "question": "Using the numbers 3, 8, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(17 + 22) - (3 - 8)"}
{"id": "countdown-heldout-000808", "source": "countdown", "nums": [6, 18, 22, 24], "target": 21, "question": "Using the numbers 6, 18, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "22 - (24 / (6 + 18))"}
{"id": "countdown-heldout-000809", "source": "countdown", "nums": [6, 8, 12, 14], "target": 30, "question": "Using the numbers 6, 8, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "14 + (12 / (6 / 8))"}
{"id": "countdown-heldout-000810", "source": "countdown", "nums": [4, 4, 9, 16], "target": 15, "question": "Using the numbers 4, 4, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(4 + 4) - (9 - 16)"}
{"id": "countdown-heldout-000811", "source": "countdown", "nums": [4, 16, 20, 21], "target": 43, "question": "Using the numbers 4, 16, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(4 * 20) - (16 + 21)"}
{"id": "countdown-heldout-000812", "source": "countdown", "nums": [6, 6, 10, 15], "target": 86, "question": "Using the numbers 6, 6, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(6 - 10) + (6 * 15)"}
{"id": "countdown-heldout-000813", "source": "countdown", "nums": [3, 7, 17, 23], "target": 24, "question": "Using the numbers 3, 7, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(3 - 7) * (17 - 23)"}
{"id": "countdown-heldout-000814", "source": "countdown", "nums": [6, 10, 21, 24], "target": 16, "question": "Using the numbers 6, 10, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(10 * 24) / (21 - 6)"}
{"id": "countdown-heldout-000815", "source": "countdown", "nums": [4, 10, 21, 24], "target": 37, "question": "Using the numbers 4, 10, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(4 * 10) + (21 - 24)"}
{"id": "countdown-heldout-000816", "source": "countdown", "nums": [1, 5, 10, 16], "target": 71, "question": "Using the numbers 1, 5, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "16 + (5 * (1 + 10))"}
{"id": "countdown-heldout-000817", "source": "countdown", "nums": [13, 15, 17, 19], "target": 91, "question": "Using the numbers 13, 15, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "15 - (19 * (13 - 17))"}
{"id": "countdown-heldout-000818", "source": "countdown", "nums": [8, 19, 20, 25], "target": 34, "question": "Using the numbers 8, 19, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(8 - 19) + (20 + 25)"}
{"id": "countdown-heldout-000819", "source": "countdown", "nums": [1, 3, 9, 23], "target": 60, "question": "Using the numbers 1, 3, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(23 * (1 * 3)) - 9"}
{"id": "countdown-heldout-000820", "source": "countdown", "nums": [2, 13, 20, 25], "target": 23, "question": "Using the numbers 2, 13, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "13 - (2 * (20 - 25))"}
{"id": "countdown-heldout-000821", "source": "countdown", "nums": [6, 9, 10, 21], "target": 24, "question": "Using the numbers 6, 9, 10, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "10 + (21 * (6 / 9))"}
{"id": "countdown-heldout-000822", "source": "countdown", "nums": [6, 8, 22, 23], "target": 93, "question": "Using the numbers 6, 8, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(6 * 8) + (22 + 23)"}
{"id": "countdown-heldout-000823", "source": "countdown", "nums": [2, 12, 18, 23], "target": 52, "question": "Using the numbers 2, 12, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(2 * 23) - (12 - 18)"}
{"id": "countdown-heldout-000824", "source": "countdown", "nums": [9, 10, 18, 25], "target": 73, "question": "Using the numbers 9, 10, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "10 - (9 * (18 - 25))"}
{"id": "countdown-heldout-000825", "source": "countdown", "nums": [7, 9, 13, 14], "target": 24, "question": "Using the numbers 7, 9, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(9 + 13) + (14 / 7)"}
{"id": "countdown-heldout-000826", "source": "countdown", "nums": [2, 13, 19, 21], "target": 48, "question": "Using the numbers 2, 13, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 * 21) - (13 - 19)"}
{"id": "countdown-heldout-000827", "source": "countdown", "nums": [12, 22, 24, 25], "target": 96, "question": "Using the numbers 12, 22, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(12 * 24) / (25 - 22)"}
{"id": "countdown-heldout-000828", "source": "countdown", "nums": [2, 11, 13, 22], "target": 23, "question": "Using the numbers 2, 11, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "22 + (13 / (2 + 11))"}
{"id": "countdown-heldout-000829", "source": "countdown", "nums": [6, 6, 9, 11], "target": 10, "question": "Using the numbers 6, 6, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(6 + 6) + (9 - 11)"}
{"id": "countdown-heldout-000830", "source": "countdown", "nums": [11, 17, 17, 23], "target": 35, "question": "Using the numbers 11, 17, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(11 + 23) + (17 / 17)"}
{"id": "countdown-heldout-000831", "source": "countdown", "nums": [2, 2, 14, 19], "target": 95, "question": "Using the numbers 2, 2, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "19 * ((14 / 2) - 2)"}
{"id": "countdown-heldout-000832", "source": "countdown", "nums": [4, 12, 17, 18], "target": 44, "question": "Using the numbers 4, 12, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "4 * ((12 + 17) - 18)"}
{"id": "countdown-heldout-000833", "source": "countdown", "nums": [4, 13, 15, 23], "target": 70, "question": "Using the numbers 4, 13, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(4 * 15) - (13 - 23)"}
{"id": "countdown-heldout-000834", "source": "countdown", "nums": [3, 17, 24, 25], "target": 54, "question": "Using the numbers 3, 17, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "3 * (25 + (17 - 24))"}
{"id": "countdown-heldout-000835", "source": "countdown", "nums": [4, 12, 23, 25], "target": 10, "question": "Using the numbers 4, 12, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "25 - (23 + (4 - 12))"}
{"id": "countdown-heldout-000836", "source": "countdown", "nums": [1, 2, 8, 21], "target": 25, "question": "Using the numbers 1, 2, 8, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "21 + (8 / (1 * 2))"}
{"id": "countdown-heldout-000837", "source": "countdown", "nums": [2, 6, 8, 9], "target": 92, "question": "Using the numbers 2, 6, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "2 * ((6 * 9) - 8)"}
{"id": "countdown-heldout-000838", "source": "countdown", "nums": [10, 13, 20, 21], "target": 29, "question": "Using the numbers 10, 13, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(21 / (10 / 20)) - 13"}
{"id": "countdown-heldout-000839", "source": "countdown", "nums": [5, 10, 16, 25], "target": 99, "question": "Using the numbers 5, 10, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(5 * 25) - (10 + 16)"}
{"id": "countdown-heldout-000840", "source": "countdown", "nums": [2, 2, 11, 21], "target": 33, "question": "Using the numbers 2, 2, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(2 / 2) + (11 + 21)"}
{"id": "countdown-heldout-000841", "source": "countdown", "nums": [2, 6, 12, 20], "target": 12, "question": "Using the numbers 2, 6, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "20 - (12 + (2 - 6))"}
{"id": "countdown-heldout-000842", "source": "countdown", "nums": [7, 11, 14, 19], "target": 68, "question": "Using the numbers 7, 11, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(7 * 14) - (11 + 19)"}
{"id": "countdown-heldout-000843", "source": "countdown", "nums": [8, 10, 17, 22], "target": 34, "question": "Using the numbers 8, 10, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(8 * (17 - 10)) - 22"}
{"id": "countdown-heldout-000844", "source": "countdown", "nums": [4, 5, 15, 25], "target": 11, "question": "Using the numbers 4, 5, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "25 - (15 + (4 - 5))"}
{"id": "countdown-heldout-000845", "source": "countdown", "nums": [5, 19, 21, 22], "target": 52, "question": "Using the numbers 5, 19, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(5 * 19) - (21 + 22)"}
{"id": "countdown-heldout-000846", "source": "countdown", "nums": [5, 9, 10, 16], "target": 61, "question": "Using the numbers 5, 9, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "16 - (9 * (5 - 10))"}
{"id": "countdown-heldout-000847", "source": "countdown", "nums": [4, 12, 16, 18], "target": 66, "question": "Using the numbers 4, 12, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "18 + (16 / (4 / 12))"}
{"id": "countdown-heldout-000848", "source": "countdown", "nums": [1, 12, 17, 18], "target": 13, "question": "Using the numbers 1, 12, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(1 + 12) * (18 - 17)"}
{"id": "countdown-heldout-000849", "source": "countdown", "nums": [5, 6, 11, 22], "target": 42, "question": "Using the numbers 5, 6, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "6 * (5 + (22 / 11))"}
{"id": "countdown-heldout-000850", "source": "countdown", "nums": [4, 5, 15, 24], "target": 23, "question": "Using the numbers 4, 5, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(15 / 5) - (4 - 24)"}
{"id": "countdown-heldout-000851", "source": "countdown", "nums": [6, 10, 14, 19], "target": 75, "question": "Using the numbers 6, 10, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "19 - (14 * (6 - 10))"}
{"id": "countdown-heldout-000852", "source": "countdown", "nums": [3, 6, 18, 23], "target": 17, "question": "Using the numbers 3, 6, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "23 + (18 / (3 - 6))"}
{"id": "countdown-heldout-000853", "source": "countdown", "nums": [6, 6, 8, 21], "target": 30, "question": "Using the numbers 6, 6, 8, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(6 / 6) + (8 + 21)"}
{"id": "countdown-heldout-000854", "source": "countdown", "nums": [2, 5, 10, 11], "target": 43, "question": "Using the numbers 2, 5, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "10 - (11 * (2 - 5))"}
{"id": "countdown-heldout-000855", "source": "countdown", "nums": [7, 7, 21, 22], "target": 81, "question": "Using the numbers 7, 7, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "21 * (7 - (22 / 7))"}
{"id": "countdown-heldout-000856", "source": "countdown", "nums": [4, 15, 17, 25], "target": 88, "question": "Using the numbers 4, 15, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(4 - 15) * (17 - 25)"}
{"id": "countdown-heldout-000857", "source": "countdown", "nums": [8, 9, 16, 18], "target": 64, "question": "Using the numbers 8, 9, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(8 * 9) * (16 / 18)"}
{"id": "countdown-heldout-000858", "source": "countdown", "nums": [11, 15, 18, 22], "target": 14, "question": "Using the numbers 11, 15, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(18 + 22) - (11 + 15)"}
{"id": "countdown-heldout-000859", "source": "countdown", "nums": [7, 7, 8, 15], "target": 64, "question": "Using the numbers 7, 7, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(7 * 8) - (7 - 15)"}
{"id": "countdown-heldout-000860", "source": "countdown", "nums": [7, 9, 12, 12], "target": 72, "question": "Using the numbers 7, 9, 12, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(12 * 12) / (9 - 7)"}
{"id": "countdown-heldout-000861", "source": "countdown", "nums": [2, 3, 15, 20], "target": 55, "question": "Using the numbers 2, 3, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(15 * (2 + 3)) - 20"}
{"id": "countdown-heldout-000862", "source": "countdown", "nums": [8, 8, 12, 24], "target": 13, "question": "Using the numbers 8, 8, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(8 / 8) - (12 - 24)"}
{"id": "countdown-heldout-000863", "source": "countdown", "nums": [4, 8, 19, 24], "target": 64, "question": "Using the numbers 4, 8, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "4 * (19 - (24 / 8))"}
{"id": "countdown-heldout-000864", "source": "countdown", "nums": [1, 6, 7, 16], "target": 64, "question": "Using the numbers 1, 6, 7, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "16 + (6 * (1 + 7))"}
{"id": "countdown-heldout-000865", "source": "countdown", "nums": [11, 17, 18, 20], "target": 26, "question": "Using the numbers 11, 17, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(11 + 17) + (18 - 20)"}
{"id": "countdown-heldout-000866", "source": "countdown", "nums": [8, 13, 15, 22], "target": 83, "question": "Using the numbers 8, 13, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "(13 * (22 - 15)) - 8"}
{"id": "countdown-heldout-000867", "source": "countdown", "nums": [9, 11, 12, 22], "target": 87, "question": "Using the numbers 9, 11, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(9 * (22 - 11)) - 12"}
{"id": "countdown-heldout-000868", "source": "countdown", "nums": [4, 5, 14, 14], "target": 62, "question": "Using the numbers 4, 5, 14, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(4 * (5 + 14)) - 14"}
{"id": "countdown-heldout-000869", "source": "countdown", "nums": [2, 11, 14, 21], "target": 22, "question": "Using the numbers 2, 11, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(14 + 21) - (2 + 11)"}
{"id": "countdown-heldout-000870", "source": "countdown", "nums": [2, 2, 7, 18], "target": 44, "question": "Using the numbers 2, 2, 7, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(2 + 2) * (18 - 7)"}
{"id": "countdown-heldout-000871", "source": "countdown", "nums": [2, 4, 16, 21], "target": 78, "question": "Using the numbers 2, 4, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "4 + (2 * (16 + 21))"}
{"id": "countdown-heldout-000872", "source": "countdown", "nums": [3, 5, 9, 12], "target": 14, "question": "Using the numbers 3, 5, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(5 + 12) - (9 / 3)"}
{"id": "countdown-heldout-000873", "source": "countdown", "nums": [3, 4, 17, 17], "target": 27, "question": "Using the numbers 3, 4, 17, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(17 + 17) - (3 + 4)"}
{"id": "countdown-heldout-000874", "source": "countdown", "nums": [5, 9, 9, 24], "target": 87, "question": "Using the numbers 5, 9, 9, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(24 * (9 - 5)) - 9"}
{"id": "countdown-heldout-000875", "source": "countdown", "nums": [9, 12, 22, 24], "target": 24, "question": "Using the numbers 9, 12, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "24 * (22 - (9 + 12))"}
{"id": "countdown-heldout-000876", "source": "countdown", "nums": [3, 12, 22, 25], "target": 53, "question": "Using the numbers 3, 12, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(3 * 22) + (12 - 25)"}
{"id": "countdown-heldout-000877", "source": "countdown", "nums": [2, 13, 20, 21], "target": 12, "question": "Using the numbers 2, 13, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "21 - (20 + (2 - 13))"}
{"id": "countdown-heldout-000878", "source": "countdown", "nums": [3, 5, 5, 8], "target": 38, "question": "Using the numbers 3, 5, 5, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(3 - 5) + (5 * 8)"}
{"id": "countdown-heldout-000879", "source": "countdown", "nums": [7, 10, 21, 21], "target": 42, "question": "Using the numbers 7, 10, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(21 * (10 - 7)) - 21"}
{"id": "countdown-heldout-000880", "source": "countdown", "nums": [7, 9, 10, 16], "target": 91, "question": "Using the numbers 7, 9, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "10 - (9 * (7 - 16))"}
{"id": "countdown-heldout-000881", "source": "countdown", "nums": [10, 16, 17, 18], "target": 61, "question": "Using the numbers 10, 16, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(10 + 16) + (17 + 18)"}
{"id": "countdown-heldout-000882", "source": "countdown", "nums": [6, 12, 15, 24], "target": 63, "question": "Using the numbers 6, 12, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(6 * 12) + (15 - 24)"}
{"id": "countdown-heldout-000883", "source": "countdown", "nums": [1, 2, 7, 11], "target": 20, "question": "Using the numbers 1, 2, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(1 * 2) + (7 + 11)"}
{"id": "countdown-heldout-000884", "source": "countdown", "nums": [3, 10, 14, 16], "target": 26, "question": "Using the numbers 3, 10, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(3 + 10) * (16 - 14)"}
{"id": "countdown-heldout-000885", "source": "countdown", "nums": [3, 4, 10, 11], "target": 57, "question": "Using the numbers 3, 4, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(3 + 10) + (4 * 11)"}
{"id": "countdown-heldout-000886", "source": "countdown", "nums": [7, 9, 23, 23], "target": 72, "question": "Using the numbers 7, 9, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "9 * (7 + (23 / 23))"}
{"id": "countdown-heldout-000887", "source": "countdown", "nums": [12, 15, 21, 24], "target": 12, "question": "Using the numbers 12, 15, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(21 - 15) / (12 / 24)"}
{"id": "countdown-heldout-000888", "source": "countdown", "nums": [10, 17, 18, 21], "target": 24, "question": "Using the numbers 10, 17, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(10 + 17) + (18 - 21)"}
{"id": "countdown-heldout-000889", "source": "countdown", "nums": [4, 6, 17, 21], "target": 22, "question": "Using the numbers 4, 6, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "6 - (4 * (17 - 21))"}
{"id": "countdown-heldout-000890", "source": "countdown", "nums": [15, 17, 21, 22], "target": 23, "question": "Using the numbers 15, 17, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(22 * (17 - 15)) - 21"}
{"id": "countdown-heldout-000891", "source": "countdown", "nums": [2, 8, 15, 20], "target": 21, "question": "Using the numbers 2, 8, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(2 * 8) - (15 - 20)"}
{"id": "countdown-heldout-000892", "source": "countdown", "nums": [2, 4, 7, 14], "target": 47, "question": "Using the numbers 2, 4, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(4 * 14) - (2 + 7)"}
{"id": "countdown-heldout-000893", "source": "countdown", "nums": [5, 6, 11, 21], "target": 11, "question": "Using the numbers 5, 6, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "21 - (11 + (5 - 6))"}
{"id": "countdown-heldout-000894", "source": "countdown", "nums": [5, 8, 9, 21], "target": 63, "question": "Using the numbers 5, 8, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(9 * 21) / (8 - 5)"}
{"id": "countdown-heldout-000895", "source": "countdown", "nums": [8, 8, 14, 16], "target": 84, "question": "Using the numbers 8, 8, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "14 * (8 - (16 / 8))"}
{"id": "countdown-heldout-000896", "source": "countdown", "nums": [3, 8, 10, 14], "target": 10, "question": "Using the numbers 3, 8, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "8 - (14 / (3 - 10))"}
{"id": "countdown-heldout-000897", "source": "countdown", "nums": [6, 7, 22, 23], "target": 48, "question": "Using the numbers 6, 7, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "6 * (23 + (7 - 22))"}
{"id": "countdown-heldout-000898", "source": "countdown", "nums": [10, 16, 17, 21], "target": 24, "question": "Using the numbers 10, 16, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(10 - 16) * (17 - 21)"}
{"id": "countdown-heldout-000899", "source": "countdown", "nums": [3, 14, 24, 25], "target": 31, "question": "Using the numbers 3, 14, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(14 + 25) - (24 / 3)"}
{"id": "countdown-heldout-000900", "source": "countdown", "nums": [4, 8, 15, 17], "target": 75, "question": "Using the numbers 4, 8, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "15 * (17 - (4 + 8))"}
{"id": "countdown-heldout-000901", "source": "countdown", "nums": [12, 20, 22, 25], "target": 98, "question": "Using the numbers 12, 20, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(22 * (25 - 20)) - 12"}
{"id": "countdown-heldout-000902", "source": "countdown", "nums": [3, 7, 10, 14], "target": 16, "question": "Using the numbers 3, 7, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(3 - 7) * (10 - 14)"}
{"id": "countdown-heldout-000903", "source": "countdown", "nums": [11, 18, 18, 23], "target": 70, "question": "Using the numbers 11, 18, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(11 + 18) + (18 + 23)"}
{"id": "countdown-heldout-000904", "source": "countdown", "nums": [15, 19, 21, 23], "target": 13, "question": "Using the numbers 15, 19, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "15 - ((19 + 23) / 21)"}
{"id": "countdown-heldout-000905", "source": "countdown", "nums": [3, 6, 6, 9], "target": 87, "question": "Using the numbers 3, 6, 6, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "6 + (9 * (3 + 6))"}
{"id": "countdown-heldout-000906", "source": "countdown", "nums": [2, 3, 6, 12], "target": 76, "question": "Using the numbers 2, 3, 6, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "6 * (12 + (2 / 3))"}
{"id": "countdown-heldout-000907", "source": "countdown", "nums": [5, 9, 18, 19], "target": 80, "question": "Using the numbers 5, 9, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(5 * 18) + (9 - 19)"}
{"id": "countdown-heldout-000908", "source": "countdown", "nums": [2, 16, 17, 22], "target": 47, "question": "Using the numbers 2, 16, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(16 / 2) + (17 + 22)"}
{"id": "countdown-heldout-000909", "source": "countdown", "nums": [5, 15, 19, 20], "target": 30, "question": "Using the numbers 5, 15, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(15 + 19) - (20 / 5)"}
{"id": "countdown-heldout-000910", "source": "countdown", "nums": [2, 5, 9, 16], "target": 31, "question": "Using the numbers 2, 5, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(16 / (2 / 5)) - 9"}
{"id": "countdown-heldout-000911", "source": "countdown", "nums": [2, 5, 7, 12], "target": 63, "question": "Using the numbers 2, 5, 7, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "7 * (12 + (2 - 5))"}
{"id": "countdown-heldout-000912", "source": "countdown", "nums": [4, 14, 17, 21], "target": 13, "question": "Using the numbers 4, 14, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "14 - (21 / (4 + 17))"}
{"id": "countdown-heldout-000913", "source": "countdown", "nums": [10, 13, 15, 19], "target": 97, "question": "Using the numbers 10, 13, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(13 * 19) - (10 * 15)"}
{"id": "countdown-heldout-000914", "source": "countdown", "nums": [3, 14, 21, 21], "target": 18, "question": "Using the numbers 3, 14, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(3 + 14) + (21 / 21)"}
{"id": "countdown-heldout-000915", "source": "countdown", "nums": [7, 7, 8, 14], "target": 97, "question": "Using the numbers 7, 7, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(7 - 8) + (7 * 14)"}
{"id": "countdown-heldout-000916", "source": "countdown", "nums": [2, 4, 5, 15], "target": 35, "question": "Using the numbers 2, 4, 5, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "5 - (15 * (2 - 4))"}
{"id": "countdown-heldout-000917", "source": "countdown", "nums": [4, 12, 21, 24], "target": 39, "question": "Using the numbers 4, 12, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(21 / (4 / 12)) - 24"}
{"id": "countdown-heldout-000918", "source": "countdown", "nums": [9, 17, 19, 20], "target": 48, "question": "Using the numbers 9, 17, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(19 * (20 - 17)) - 9"}
{"id": "countdown-heldout-000919", "source": "countdown", "nums": [6, 14, 22, 25], "target": 12, "question": "Using the numbers 6, 14, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(6 * 22) / (25 - 14)"}
{"id": "countdown-heldout-000920", "source": "countdown", "nums": [8, 18, 20, 24], "target": 74, "question": "Using the numbers 8, 18, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "20 + (24 / (8 / 18))"}
{"id": "countdown-heldout-000921", "source": "countdown", "nums": [1, 2, 7, 12], "target": 30, "question": "Using the numbers 1, 2, 7, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(2 * 12) - (1 - 7)"}
{"id": "countdown-heldout-000922", "source": "countdown", "nums": [2, 2, 3, 12], "target": 39, "question": "Using the numbers 2, 2, 3, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "3 * (12 + (2 / 2))"}
{"id": "countdown-heldout-000923", "source": "countdown", "nums": [11, 12, 15, 24], "target": 19, "question": "Using the numbers 11, 12, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "11 - (24 / (12 - 15))"}
{"id": "countdown-heldout-000924", "source": "countdown", "nums": [3, 6, 14, 20], "target": 67, "question": "Using the numbers 3, 6, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(3 - 20) + (6 * 14)"}
{"id": "countdown-heldout-000925", "source": "countdown", "nums": [5, 12, 22, 25], "target": 64, "question": "Using the numbers 5, 12, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(5 + 12) + (22 + 25)"}
{"id": "countdown-heldout-000926", "source": "countdown", "nums": [1, 4, 4, 7], "target": 96, "question": "Using the numbers 1, 4, 4, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(4 * 4) * (7 - 1)"}
{"id": "countdown-heldout-000927", "source": "countdown", "nums": [2, 5, 5, 23], "target": 33, "question": "Using the numbers 2, 5, 5, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "5 * (2 + (23 / 5))"}
{"id": "countdown-heldout-000928", "source": "countdown", "nums": [3, 8, 17, 22], "target": 43, "question": "Using the numbers 3, 8, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "3 - (8 * (17 - 22))"}
{"id": "countdown-heldout-000929", "source": "countdown", "nums": [1, 3, 4, 7], "target": 34, "question": "Using the numbers 1, 3, 4, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "1 + (3 * (4 + 7))"}
{"id": "countdown-heldout-000930", "source": "countdown", "nums": [11, 16, 19, 23], "target": 37, "question": "Using the numbers 11, 16, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(11 - 16) + (19 + 23)"}
{"id": "countdown-heldout-000931", "source": "countdown", "nums": [9, 18, 21, 22], "target": 19, "question": "Using the numbers 9, 18, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "22 + (9 / (18 - 21))"}
{"id": "countdown-heldout-000932", "source": "countdown", "nums": [2, 3, 13, 17], "target": 18, "question": "Using the numbers 2, 3, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "3 * (17 + (2 - 13))"}
{"id": "countdown-heldout-000933", "source": "countdown", "nums": [1, 2, 6, 10], "target": 59, "question": "Using the numbers 1, 2, 6, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(1 - 2) + (6 * 10)"}
{"id": "countdown-heldout-000934", "source": "countdown", "nums": [2, 6, 14, 20], "target": 32, "question": "Using the numbers 2, 6, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(2 * 20) + (6 - 14)"}
{"id": "countdown-heldout-000935", "source": "countdown", "nums": [1, 3, 5, 20], "target": 68, "question": "Using the numbers 1, 3, 5, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(1 - 5) * (3 - 20)"}
{"id": "countdown-heldout-000936", "source": "countdown", "nums": [4, 5, 18, 18], "target": 35, "question": "Using the numbers 4, 5, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(4 - 5) + (18 + 18)"}
{"id": "countdown-heldout-000937", "source": "countdown", "nums": [2, 3, 11, 11], "target": 17, "question": "Using the numbers 2, 3, 11, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(11 + 11) - (2 + 3)"}
{"id": "countdown-heldout-000938", "source": "countdown", "nums": [7, 9, 9, 14], "target": 77, "question": "Using the numbers 7, 9, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "9 * (7 + (14 / 9))"}
{"id": "countdown-heldout-000939", "source": "countdown", "nums": [2, 7, 9, 13], "target": 32, "question": "Using the numbers 2, 7, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(9 * (7 - 2)) - 13"}
{"id": "countdown-heldout-000940", "source": "countdown", "nums": [2, 10, 10, 18], "target": 59, "question": "Using the numbers 2, 10, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(18 + (10 * 10)) / 2"}
{"id": "countdown-heldout-000941", "source": "countdown", "nums": [4, 19, 21, 23], "target": 17, "question": "Using the numbers 4, 19, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "23 - (21 + (4 - 19))"}
{"id": "countdown-heldout-000942", "source": "countdown", "nums": [11, 13, 15, 16], "target": 24, "question": "Using the numbers 11, 13, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(11 + 13) * (16 - 15)"}
{"id": "countdown-heldout-000943", "source": "countdown", "nums": [4, 12, 13, 13], "target": 12, "question": "Using the numbers 4, 12, 13, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "12 + (4 * (13 - 13))"}
{"id": "countdown-heldout-000944", "source": "countdown", "nums": [2, 2, 18, 18], "target": 68, "question": "Using the numbers 2, 2, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "2 * (18 - (2 - 18))"}
{"id": "countdown-heldout-000945", "source": "countdown", "nums": [14, 17, 18, 23], "target": 11, "question": "Using the numbers 14, 17, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "14 + (18 / (17 - 23))"}
{"id": "countdown-heldout-000946", "source": "countdown", "nums": [9, 10, 14, 20], "target": 97, "question": "Using the numbers 9, 10, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "10 * (9 + (14 / 20))"}
{"id": "countdown-heldout-000947", "source": "countdown", "nums": [11, 11, 15, 22], "target": 19, "question": "Using the numbers 11, 11, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(22 / (11 / 15)) - 11"}
{"id": "countdown-heldout-000948", "source": "countdown", "nums": [7, 14, 19, 21], "target": 14, "question": "Using the numbers 7, 14, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(7 - 14) * (19 - 21)"}
{"id": "countdown-heldout-000949", "source": "countdown", "nums": [5, 10, 11, 12], "target": 93, "question": "Using the numbers 5, 10, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(10 * 11) - (5 + 12)"}
{"id": "countdown-heldout-000950", "source": "countdown", "nums": [6, 9, 21, 24], "target": 57, "question": "Using the numbers 6, 9, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(6 * 9) - (21 - 24)"}
{"id": "countdown-heldout-000951", "source": "countdown", "nums": [4, 4, 8, 16], "target": 16, "question": "Using the numbers 4, 4, 8, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(8 + 16) - (4 + 4)"}
{"id": "countdown-heldout-000952", "source": "countdown", "nums": [8, 12, 16, 16], "target": 100, "question": "Using the numbers 8, 12, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(8 * 16) - (12 + 16)"}
{"id": "countdown-heldout-000953", "source": "countdown", "nums": [5, 11, 21, 23], "target": 77, "question": "Using the numbers 5, 11, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "11 * (23 + (5 - 21))"}
{"id": "countdown-heldout-000954", "source": "countdown", "nums": [2, 5, 9, 25], "target": 88, "question": "Using the numbers 2, 5, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "25 + (9 * (2 + 5))"}
{"id": "countdown-heldout-000955", "source": "countdown", "nums": [6, 7, 11, 15], "target": 52, "question": "Using the numbers 6, 7, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(6 + 7) * (15 - 11)"}
{"id": "countdown-heldout-000956", "source": "countdown", "nums": [15, 22, 24, 24], "target": 78, "question": "Using the numbers 15, 22, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(15 + 24) * (24 - 22)"}
{"id": "countdown-heldout-000957", "source": "countdown", "nums": [5, 13, 20, 25], "target": 37, "question": "Using the numbers 5, 13, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(5 - 13) + (20 + 25)"}
{"id": "countdown-heldout-000958", "source": "countdown", "nums": [5, 6, 12, 21], "target": 52, "question": "Using the numbers 5, 6, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(5 + 21) / (6 / 12)"}
{"id": "countdown-heldout-000959", "source": "countdown", "nums": [2, 7, 19, 23], "target": 26, "question": "Using the numbers 2, 7, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "23 + ((2 + 19) / 7)"}
{"id": "countdown-heldout-000960", "source": "countdown", "nums": [10, 14, 14, 15], "target": 33, "question": "Using the numbers 10, 14, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(14 + 15) - (10 - 14)"}
{"id": "countdown-heldout-000961", "source": "countdown", "nums": [4, 5, 13, 24], "target": 12, "question": "Using the numbers 4, 5, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "24 - (13 + (4 - 5))"}
{"id": "countdown-heldout-000962", "source": "countdown", "nums": [2, 3, 4, 10], "target": 12, "question": "Using the numbers 2, 3, 4, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(2 * 3) - (4 - 10)"}
{"id": "countdown-heldout-000963", "source": "countdown", "nums": [12, 14, 23, 24], "target": 73, "question": "Using the numbers 12, 14, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(12 + 14) + (23 + 24)"}
{"id": "countdown-heldout-000964", "source": "countdown", "nums": [1, 2, 8, 17], "target": 12, "question": "Using the numbers 1, 2, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(1 + 2) - (8 - 17)"}
{"id": "countdown-heldout-000965", "source": "countdown", "nums": [2, 2, 12, 21], "target": 48, "question": "Using the numbers 2, 2, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 * 21) + (12 / 2)"}
{"id": "countdown-heldout-000966", "source": "countdown", "nums": [5, 13, 19, 21], "target": 99, "question": "Using the numbers 5, 13, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(5 * 21) + (13 - 19)"}
{"id": "countdown-heldout-000967", "source": "countdown", "nums": [3, 3, 13, 13], "target": 61, "question": "Using the numbers 3, 3, 13, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "13 + (3 * (3 + 13))"}
{"id": "countdown-heldout-000968", "source": "countdown", "nums": [2, 7, 14, 20], "target": 42, "question": "Using the numbers 2, 7, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(2 * 20) + (14 / 7)"}
{"id": "countdown-heldout-000969", "source": "countdown", "nums": [1, 8, 14, 20], "target": 35, "question": "Using the numbers 1, 8, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(14 * 20) / (1 * 8)"}
{"id": "countdown-heldout-000970", "source": "countdown", "nums": [3, 9, 13, 16], "target": 67, "question": "Using the numbers 3, 9, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "3 - (16 * (9 - 13))"}
{"id": "countdown-heldout-000971", "source": "countdown", "nums": [12, 16, 20, 24], "target": 84, "question": "Using the numbers 12, 16, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(24 * (20 - 16)) - 12"}
{"id": "countdown-heldout-000972", "source": "countdown", "nums": [2, 5, 8, 25], "target": 90, "question": "Using the numbers 2, 5, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(2 * 25) + (5 * 8)"}
{"id": "countdown-heldout-000973", "source": "countdown", "nums": [6, 6, 18, 21], "target": 25, "question": "Using the numbers 6, 6, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "21 + ((6 + 18) / 6)"}
{"id": "countdown-heldout-000974", "source": "countdown", "nums": [3, 3, 23, 25], "target": 39, "question": "Using the numbers 3, 3, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(23 + 25) - (3 * 3)"}
{"id": "countdown-heldout-000975", "source": "countdown", "nums": [5, 8, 18, 24], "target": 33, "question": "Using the numbers 5, 8, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "18 + (24 * (5 / 8))"}
{"id": "countdown-heldout-000976", "source": "countdown", "nums": [1, 2, 10, 19], "target": 25, "question": "Using the numbers 1, 2, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(1 + 19) + (10 / 2)"}
{"id": "countdown-heldout-000977", "source": "countdown", "nums": [2, 14, 15, 24], "target": 60, "question": "Using the numbers 2, 14, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "15 * ((2 * 14) - 24)"}
{"id": "countdown-heldout-000978", "source": "countdown", "nums": [5, 18, 21, 22], "target": 22, "question": "Using the numbers 5, 18, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(5 + 18) + (21 - 22)"}
{"id": "countdown-heldout-000979", "source": "countdown", "nums": [6, 16, 21, 25], "target": 63, "question": "Using the numbers 6, 16, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "21 * (25 - (6 + 16))"}
{"id": "countdown-heldout-000980", "source": "countdown", "nums": [2, 4, 11, 22], "target": 46, "question": "Using the numbers 2, 4, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "2 - (4 * (11 - 22))"}
{"id": "countdown-heldout-000981", "source": "countdown", "nums": [2, 5, 6, 7], "target": 55, "question": "Using the numbers 2, 5, 6, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "6 + (7 * (2 + 5))"}
{"id": "countdown-heldout-000982", "source": "countdown", "nums": [2, 3, 16, 17], "target": 43, "question": "Using the numbers 2, 3, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "17 - (2 * (3 - 16))"}
{"id": "countdown-heldout-000983", "source": "countdown", "nums": [3, 9, 18, 22], "target": 32, "question": "Using the numbers 3, 9, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(18 / (3 / 9)) - 22"}
{"id": "countdown-heldout-000984", "source": "countdown", "nums": [11, 19, 24, 25], "target": 19, "question": "Using the numbers 11, 19, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(24 + 25) - (11 + 19)"}
{"id": "countdown-heldout-000985", "source": "countdown", "nums": [3, 4, 14, 17], "target": 31, "question": "Using the numbers 3, 4, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "17 - (14 * (3 - 4))"}
{"id": "countdown-heldout-000986", "source": "countdown", "nums": [5, 8, 9, 11], "target": 60, "question": "Using the numbers 5, 8, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(5 * 8) + (9 + 11)"}
{"id": "countdown-heldout-000987", "source": "countdown", "nums": [2, 3, 5, 17], "target": 48, "question": "Using the numbers 2, 3, 5, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 - 5) + (3 * 17)"}
{"id": "countdown-heldout-000988", "source": "countdown", "nums": [5, 10, 19, 19], "target": 49, "question": "Using the numbers 5, 10, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(5 * 10) - (19 / 19)"}
{"id": "countdown-heldout-000989", "source": "countdown", "nums": [2, 17, 19, 19], "target": 40, "question": "Using the numbers 2, 17, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(2 * 19) - (17 - 19)"}
{"id": "countdown-heldout-000990", "source": "countdown", "nums": [2, 10, 18, 21], "target": 17, "question": "Using the numbers 2, 10, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(2 * 10) + (18 - 21)"}
{"id": "countdown-heldout-000991", "source": "countdown", "nums": [4, 4, 6, 14], "target": 58, "question": "Using the numbers 4, 4, 6, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(4 * 14) - (4 - 6)"}
{"id": "countdown-heldout-000992", "source": "countdown", "nums": [4, 5, 18, 19], "target": 15, "question": "Using the numbers 4, 5, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "5 * ((4 + 18) - 19)"}
{"id": "countdown-heldout-000993", "source": "countdown", "nums": [8, 15, 16, 21], "target": 14, "question": "Using the numbers 8, 15, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(16 + 21) - (8 + 15)"}
{"id": "countdown-heldout-000994", "source": "countdown", "nums": [1, 4, 18, 24], "target": 21, "question": "Using the numbers 1, 4, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "18 * (1 + (4 / 24))"}
{"id": "countdown-heldout-000995", "source": "countdown", "nums": [14, 15, 17, 19], "target": 26, "question": "Using the numbers 14, 15, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "19 - (14 / (15 - 17))"}
{"id": "countdown-heldout-000996", "source": "countdown", "nums": [6, 11, 15, 22], "target": 78, "question": "Using the numbers 6, 11, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "6 * (15 - (22 / 11))"}
{"id": "countdown-heldout-000997", "source": "countdown", "nums": [5, 19, 19, 20], "target": 90, "question": "Using the numbers 5, 19, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "5 * ((19 + 19) - 20)"}
{"id": "countdown-heldout-000998", "source": "countdown", "nums": [5, 13, 23, 24], "target": 11, "question": "Using the numbers 5, 13, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(23 + (5 * 24)) / 13"}
{"id": "countdown-heldout-000999", "source": "countdown", "nums": [4, 6, 17, 25], "target": 68, "question": "Using the numbers 4, 6, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "17 / ((25 / 4) - 6)"}
{"id": "countdown-heldout-001000", "source": "countdown", "nums": [10, 12, 16, 19], "target": 22, "question": "Using the numbers 10, 12, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(19 * (12 - 10)) - 16"}
{"id": "countdown-heldout-001001", "source": "countdown", "nums": [1, 11, 11, 20], "target": 88, "question": "Using the numbers 1, 11, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "11 * (20 - (1 + 11))"}
{"id": "countdown-heldout-001002", "source": "countdown", "nums": [6, 9, 18, 20], "target": 28, "question": "Using the numbers 6, 9, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(6 + 20) + (18 / 9)"}
{"id": "countdown-heldout-001003", "source": "countdown", "nums": [5, 18, 20, 25], "target": 40, "question": "Using the numbers 5, 18, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "20 * (25 - (5 + 18))"}
{"id": "countdown-heldout-001004", "source": "countdown", "nums": [4, 12, 15, 19], "target": 91, "question": "Using the numbers 4, 12, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(4 * 15) + (12 + 19)"}
{"id": "countdown-heldout-001005", "source": "countdown", "nums": [2, 13, 18, 19], "target": 57, "question": "Using the numbers 2, 13, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "19 * (18 - (2 + 13))"}
{"id": "countdown-heldout-001006", "source": "countdown", "nums": [8, 13, 15, 25], "target": 75, "question": "Using the numbers 8, 13, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(15 * 25) / (13 - 8)"}
{"id": "countdown-heldout-001007", "source": "countdown", "nums": [1, 13, 15, 21], "target": 50, "question": "Using the numbers 1, 13, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(1 + 13) + (15 + 21)"}
{"id": "countdown-heldout-001008", "source": "countdown", "nums": [6, 13, 16, 18], "target": 27, "question": "Using the numbers 6, 13, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(6 - 13) + (16 + 18)"}
{"id": "countdown-heldout-001009", "source": "countdown", "nums": [12, 13, 13, 17], "target": 64, "question": "Using the numbers 12, 13, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "12 - (13 * (13 - 17))"}
{"id": "countdown-heldout-001010", "source": "countdown", "nums": [2, 6, 17, 25], "target": 39, "question": "Using the numbers 2, 6, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 * 25) + (6 - 17)"}
{"id": "countdown-heldout-001011", "source": "countdown", "nums": [4, 8, 11, 20], "target": 33, "question": "Using the numbers 4, 8, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(20 - 8) / (4 / 11)"}
{"id": "countdown-heldout-001012", "source": "countdown", "nums": [3, 7, 12, 13], "target": 74, "question": "Using the numbers 3, 7, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(3 - 13) + (7 * 12)"}
{"id": "countdown-heldout-001013", "source": "countdown", "nums": [2, 3, 6, 22], "target": 90, "question": "Using the numbers 2, 3, 6, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "3 * (22 + (2 + 6))"}
{"id": "countdown-heldout-001014", "source": "countdown", "nums": [2, 5, 21, 22], "target": 61, "question": "Using the numbers 2, 5, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(5 * 21) - (2 * 22)"}
{"id": "countdown-heldout-001015", "source": "countdown", "nums": [4, 9, 20, 23], "target": 23, "question": "Using the numbers 4, 9, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "20 + ((4 + 23) / 9)"}
{"id": "countdown-heldout-001016", "source": "countdown", "nums": [7, 9, 13, 13], "target": 64, "question": "Using the numbers 7, 9, 13, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(7 * 9) + (13 / 13)"}
{"id": "countdown-heldout-001017", "source": "countdown", "nums": [2, 5, 5, 12], "target": 45, "question": "Using the numbers 2, 5, 5, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "5 * (12 + (2 - 5))"}
{"id": "countdown-heldout-001018", "source": "countdown", "nums": [13, 14, 17, 23], "target": 67, "question": "Using the numbers 13, 14, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(13 + 14) + (17 + 23)"}
{"id": "countdown-heldout-001019", "source": "countdown", "nums": [2, 3, 9, 10], "target": 27, "question": "Using the numbers 2, 3, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(3 * (2 + 10)) - 9"}
{"id": "countdown-heldout-001020", "source": "countdown", "nums": [2, 2, 12, 20], "target": 60, "question": "Using the numbers 2, 2, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(12 * 20) / (2 + 2)"}
{"id": "countdown-heldout-001021", "source": "countdown", "nums": [6, 11, 16, 18], "target": 74, "question": "Using the numbers 6, 11, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(18 * (11 - 6)) - 16"}
{"id": "countdown-heldout-001022", "source": "countdown", "nums": [5, 8, 9, 22], "target": 31, "question": "Using the numbers 5, 8, 9, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(5 * 9) + (8 - 22)"}
{"id": "countdown-heldout-001023", "source": "countdown", "nums": [3, 8, 10, 17], "target": 71, "question": "Using the numbers 3, 8, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "17 + (3 * (8 + 10))"}
{"id": "countdown-heldout-001024", "source": "countdown", "nums": [6, 11, 19, 23], "target": 18, "question": "Using the numbers 6, 11, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "23 - ((11 + 19) / 6)"}
{"id": "countdown-heldout-001025", "source": "countdown", "nums": [3, 6, 19, 20], "target": 19, "question": "Using the numbers 3, 6, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(3 * 6) - (19 - 20)"}
{"id": "countdown-heldout-001026", "source": "countdown", "nums": [2, 14, 15, 22], "target": 43, "question": "Using the numbers 2, 14, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(2 * 22) + (14 - 15)"}
{"id": "countdown-heldout-001027", "source": "countdown", "nums": [3, 7, 8, 13], "target": 10, "question": "Using the numbers 3, 7, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(3 - 13) * (7 - 8)"}
{"id": "countdown-heldout-001028", "source": "countdown", "nums": [2, 6, 23, 24], "target": 68, "question": "Using the numbers 2, 6, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(23 * (6 - 2)) - 24"}
{"id": "countdown-heldout-001029", "source": "countdown", "nums": [3, 4, 19, 23], "target": 54, "question": "Using the numbers 3, 4, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(3 * 4) + (19 + 23)"}
{"id": "countdown-heldout-001030", "source": "countdown", "nums": [3, 4, 6, 11], "target": 24, "question": "Using the numbers 3, 4, 6, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(3 + 4) + (6 + 11)"}
{"id": "countdown-heldout-001031", "source": "countdown", "nums": [10, 16, 20, 21], "target": 53, "question": "Using the numbers 10, 16, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "21 + (20 / (10 / 16))"}
{"id": "countdown-heldout-001032", "source": "countdown", "nums": [16, 19, 23, 24], "target": 22, "question": "Using the numbers 16, 19, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "16 - (24 / (19 - 23))"}
{"id": "countdown-heldout-001033", "source": "countdown", "nums": [6, 9, 16, 19], "target": 89, "question": "Using the numbers 6, 9, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(6 * 9) + (16 + 19)"}
{"id": "countdown-heldout-001034", "source": "countdown", "nums": [3, 8, 13, 24], "target": 89, "question": "Using the numbers 3, 8, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "24 - (13 * (3 - 8))"}
{"id": "countdown-heldout-001035", "source": "countdown", "nums": [7, 7, 19, 25], "target": 58, "question": "Using the numbers 7, 7, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(7 + 7) + (19 + 25)"}
{"id": "countdown-heldout-001036", "source": "countdown", "nums": [4, 15, 25, 25], "target": 61, "question": "Using the numbers 4, 15, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(25 + 25) - (4 - 15)"}
{"id": "countdown-heldout-001037", "source": "countdown", "nums": [2, 5, 12, 21], "target": 16, "question": "Using the numbers 2, 5, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(2 + 5) - (12 - 21)"}
{"id": "countdown-heldout-001038", "source": "countdown", "nums": [1, 6, 18, 22], "target": 34, "question": "Using the numbers 1, 6, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(18 + 22) - (1 * 6)"}
{"id": "countdown-heldout-001039", "source": "countdown", "nums": [1, 2, 21, 23], "target": 26, "question": "Using the numbers 1, 2, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(1 - 21) + (2 * 23)"}
{"id": "countdown-heldout-001040", "source": "countdown", "nums": [2, 5, 8, 23], "target": 65, "question": "Using the numbers 2, 5, 8, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "5 * (23 - (2 + 8))"}
{"id": "countdown-heldout-001041", "source": "countdown", "nums": [7, 17, 17, 21], "target": 21, "question": "Using the numbers 7, 17, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "21 + (7 * (17 - 17))"}
{"id": "countdown-heldout-001042", "source": "countdown", "nums": [3, 11, 13, 21], "target": 39, "question": "Using the numbers 3, 11, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(3 * 21) - (11 + 13)"}
{"id": "countdown-heldout-001043", "source": "countdown", "nums": [2, 4, 18, 22], "target": 16, "question": "Using the numbers 2, 4, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "2 * (22 + (4 - 18))"}
{"id": "countdown-heldout-001044", "source": "countdown", "nums": [11, 12, 21, 24], "target": 22, "question": "Using the numbers 11, 12, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(21 + 24) - (11 + 12)"}
{"id": "countdown-heldout-001045", "source": "countdown", "nums": [4, 6, 15, 24], "target": 57, "question": "Using the numbers 4, 6, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(4 * (24 - 6)) - 15"}
{"id": "countdown-heldout-001046", "source": "countdown", "nums": [4, 4, 5, 17], "target": 20, "question": "Using the numbers 4, 4, 5, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(4 + 4) - (5 - 17)"}
{"id": "countdown-heldout-001047", "source": "countdown", "nums": [8, 9, 15, 22], "target": 35, "question": "Using the numbers 8, 9, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(8 * 9) - (15 + 22)"}
{"id": "countdown-heldout-001048", "source": "countdown", "nums": [4, 20, 22, 24], "target": 14, "question": "Using the numbers 4, 20, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(22 - 24) - (4 - 20)"}
{"id": "countdown-heldout-001049", "source": "countdown", "nums": [7, 10, 21, 22], "target": 63, "question": "Using the numbers 7, 10, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "7 * ((10 + 21) - 22)"}
{"id": "countdown-heldout-001050", "source": "countdown", "nums": [2, 7, 16, 20], "target": 64, "question": "Using the numbers 2, 7, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(16 * 20) / (7 - 2)"}
{"id": "countdown-heldout-001051", "source": "countdown", "nums": [2, 5, 5, 7], "target": 70, "question": "Using the numbers 2, 5, 5, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "5 * (7 + (2 + 5))"}
{"id": "countdown-heldout-001052", "source": "countdown", "nums": [7, 11, 16, 18], "target": 86, "question": "Using the numbers 7, 11, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(11 * 18) - (7 * 16)"}
{"id": "countdown-heldout-001053", "source": "countdown", "nums": [4, 8, 18, 21], "target": 36, "question": "Using the numbers 4, 8, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(4 + 8) * (21 - 18)"}
{"id": "countdown-heldout-001054", "source": "countdown", "nums": [7, 7, 14, 15], "target": 30, "question": "Using the numbers 7, 7, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(7 / 7) + (14 + 15)"}
{"id": "countdown-heldout-001055", "source": "countdown", "nums": [6, 11, 19, 23], "target": 59, "question": "Using the numbers 6, 11, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(6 + 11) + (19 + 23)"}
{"id": "countdown-heldout-001056", "source": "countdown", "nums": [10, 11, 20, 23], "target": 41, "question": "Using the numbers 10, 11, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "11 - (10 * (20 - 23))"}
{"id": "countdown-heldout-001057", "source": "countdown", "nums": [4, 10, 19, 20], "target": 51, "question": "Using the numbers 4, 10, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(4 * 20) - (10 + 19)"}
{"id": "countdown-heldout-001058", "source": "countdown", "nums": [15, 20, 25, 25], "target": 10, "question": "Using the numbers 15, 20, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(25 + 25) / (20 - 15)"}
{"id": "countdown-heldout-001059", "source": "countdown", "nums": [8, 13, 15, 21], "target": 39, "question": "Using the numbers 8, 13, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(13 * 21) / (15 - 8)"}
{"id": "countdown-heldout-001060", "source": "countdown", "nums": [3, 10, 11, 16], "target": 12, "question": "Using the numbers 3, 10, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "16 - (11 + (3 - 10))"}
{"id": "countdown-heldout-001061", "source": "countdown", "nums": [4, 4, 8, 11], "target": 89, "question": "Using the numbers 4, 4, 8, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "(4 / 4) + (8 * 11)"}
{"id": "countdown-heldout-001062", "source": "countdown", "nums": [4, 7, 9, 13], "target": 96, "question": "Using the numbers 4, 7, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(7 * 13) - (4 - 9)"}
{"id": "countdown-heldout-001063", "source": "countdown", "nums": [6, 10, 24, 24], "target": 70, "question": "Using the numbers 6, 10, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "10 * (6 + (24 / 24))"}
{"id": "countdown-heldout-001064", "source": "countdown", "nums": [4, 11, 13, 23], "target": 43, "question": "Using the numbers 4, 11, 13, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(13 + 23) - (4 - 11)"}
{"id": "countdown-heldout-001065", "source": "countdown", "nums": [2, 4, 14, 22], "target": 39, "question": "Using the numbers 2, 4, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(22 + (4 * 14)) / 2"}
{"id": "countdown-heldout-001066", "source": "countdown", "nums": [1, 4, 6, 16], "target": 40, "question": "Using the numbers 1, 4, 6, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "16 + (6 * (1 * 4))"}
{"id": "countdown-heldout-001067", "source": "countdown", "nums": [4, 10, 17, 23], "target": 79, "question": "Using the numbers 4, 10, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "(17 * (10 - 4)) - 23"}
{"id": "countdown-heldout-001068", "source": "countdown", "nums": [7, 15, 16, 22], "target": 97, "question": "Using the numbers 7, 15, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "7 - (15 * (16 - 22))"}
{"id": "countdown-heldout-001069", "source": "countdown", "nums": [3, 14, 22, 25], "target": 84, "question": "Using the numbers 3, 14, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "14 * (25 + (3 - 22))"}
{"id": "countdown-heldout-001070", "source": "countdown", "nums": [1, 13, 17, 20], "target": 25, "question": "Using the numbers 1, 13, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(1 - 13) + (17 + 20)"}
{"id": "countdown-heldout-001071", "source": "countdown", "nums": [9, 11, 12, 13], "target": 74, "question": "Using the numbers 9, 11, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(9 * 11) - (12 + 13)"}
{"id": "countdown-heldout-001072", "source": "countdown", "nums": [3, 7, 8, 13], "target": 80, "question": "Using the numbers 3, 7, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(7 * 13) - (3 + 8)"}
{"id": "countdown-heldout-001073", "source": "countdown", "nums": [9, 10, 12, 12], "target": 25, "question": "Using the numbers 9, 10, 12, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(12 + 12) - (9 - 10)"}
{"id": "countdown-heldout-001074", "source": "countdown", "nums": [5, 6, 7, 8], "target": 64, "question": "Using the numbers 5, 6, 7, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "8 * (7 - (5 - 6))"}
{"id": "countdown-heldout-001075", "source": "countdown", "nums": [12, 15, 17, 20], "target": 14, "question": "Using the numbers 12, 15, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "20 + (12 / (15 - 17))"}
{"id": "countdown-heldout-001076", "source": "countdown", "nums": [1, 5, 22, 22], "target": 40, "question": "Using the numbers 1, 5, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(1 - 5) + (22 + 22)"}
{"id": "countdown-heldout-001077", "source": "countdown", "nums": [4, 15, 18, 24], "target": 30, "question": "Using the numbers 4, 15, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "15 * (24 - (4 + 18))"}
{"id": "countdown-heldout-001078", "source": "countdown", "nums": [7, 8, 17, 21], "target": 42, "question": "Using the numbers 7, 8, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "21 * (17 - (7 + 8))"}
{"id": "countdown-heldout-001079", "source": "countdown", "nums": [2, 8, 13, 17], "target": 17, "question": "Using the numbers 2, 8, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(2 * 13) + (8 - 17)"}
{"id": "countdown-heldout-001080", "source": "countdown", "nums": [4, 10, 16, 25], "target": 71, "question": "Using the numbers 4, 10, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(16 * (10 - 4)) - 25"}
{"id": "countdown-heldout-001081", "source": "countdown", "nums": [5, 7, 13, 18], "target": 12, "question": "Using the numbers 5, 7, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(5 * (13 - 7)) - 18"}
{"id": "countdown-heldout-001082", "source": "countdown", "nums": [3, 7, 10, 14], "target": 17, "question": "Using the numbers 3, 7, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(3 * 7) + (10 - 14)"}
{"id": "countdown-heldout-001083", "source": "countdown", "nums": [3, 6, 8, 22], "target": 26, "question": "Using the numbers 3, 6, 8, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "22 + (8 * (3 / 6))"}
{"id": "countdown-heldout-001084", "source": "countdown", "nums": [4, 6, 8, 19], "target": 25, "question": "Using the numbers 4, 6, 8, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(4 - 6) + (8 + 19)"}
{"id": "countdown-heldout-001085", "source": "countdown", "nums": [1, 9, 10, 12], "target": 30, "question": "Using the numbers 1, 9, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(10 + 12) - (1 - 9)"}
{"id": "countdown-heldout-001086", "source": "countdown", "nums": [3, 5, 17, 21], "target": 95, "question": "Using the numbers 3, 5, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "17 + (3 * (5 + 21))"}
{"id": "countdown-heldout-001087", "source": "countdown", "nums": [3, 5, 7, 12], "target": 23, "question": "Using the numbers 3, 5, 7, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(12 / (3 / 7)) - 5"}
{"id": "countdown-heldout-001088", "source": "countdown", "nums": [2, 20, 24, 25], "target": 18, "question": "Using the numbers 2, 20, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(2 - 20) * (24 - 25)"}
{"id": "countdown-heldout-001089", "source": "countdown", "nums": [4, 4, 7, 18], "target": 69, "question": "Using the numbers 4, 4, 7, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(4 - 7) + (4 * 18)"}
{"id": "countdown-heldout-001090", "source": "countdown", "nums": [2, 7, 9, 21], "target": 66, "question": "Using the numbers 2, 7, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "21 - (9 * (2 - 7))"}
{"id": "countdown-heldout-001091", "source": "countdown", "nums": [3, 8, 11, 20], "target": 99, "question": "Using the numbers 3, 8, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(3 + 8) * (20 - 11)"}
{"id": "countdown-heldout-001092", "source": "countdown", "nums": [1, 4, 12, 20], "target": 12, "question": "Using the numbers 1, 4, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(1 * 4) - (12 - 20)"}
{"id": "countdown-heldout-001093", "source": "countdown", "nums": [3, 4, 11, 18], "target": 99, "question": "Using the numbers 3, 4, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "3 * (18 + (4 + 11))"}
{"id": "countdown-heldout-001094", "source": "countdown", "nums": [17, 21, 21, 22], "target": 62, "question": "Using the numbers 17, 21, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(21 * (21 - 17)) - 22"}
{"id": "countdown-heldout-001095", "source": "countdown", "nums": [10, 13, 16, 19], "target": 26, "question": "Using the numbers 10, 13, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(10 + 13) - (16 - 19)"}
{"id": "countdown-heldout-001096", "source": "countdown", "nums": [2, 3, 7, 21], "target": 41, "question": "Using the numbers 2, 3, 7, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "21 + (2 * (3 + 7))"}
{"id": "countdown-heldout-001097", "source": "countdown", "nums": [1, 6, 10, 13], "target": 63, "question": "Using the numbers 1, 6, 10, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "13 - (10 * (1 - 6))"}
{"id": "countdown-heldout-001098", "source": "countdown", "nums": [8, 8, 10, 20], "target": 45, "question": "Using the numbers 8, 8, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(8 + 10) / (8 / 20)"}
{"id": "countdown-heldout-001099", "source": "countdown", "nums": [2, 9, 17, 19], "target": 31, "question": "Using the numbers 2, 9, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "17 + ((9 + 19) / 2)"}
{"id": "countdown-heldout-001100", "source": "countdown", "nums": [2, 3, 13, 15], "target": 18, "question": "Using the numbers 2, 3, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(3 * (13 - 2)) - 15"}
{"id": "countdown-heldout-001101", "source": "countdown", "nums": [1, 6, 13, 25], "target": 33, "question": "Using the numbers 1, 6, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(1 - 6) + (13 + 25)"}
{"id": "countdown-heldout-001102", "source": "countdown", "nums": [4, 7, 16, 24], "target": 14, "question": "Using the numbers 4, 7, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(24 - 16) / (4 / 7)"}
{"id": "countdown-heldout-001103", "source": "countdown", "nums": [4, 12, 15, 21], "target": 75, "question": "Using the numbers 4, 12, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "15 * (21 - (4 + 12))"}
{"id": "countdown-heldout-001104", "source": "countdown", "nums": [5, 10, 19, 21], "target": 38, "question": "Using the numbers 5, 10, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(19 + 21) - (10 / 5)"}
{"id": "countdown-heldout-001105", "source": "countdown", "nums": [11, 16, 18, 25], "target": 90, "question": "Using the numbers 11, 16, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(18 * 25) / (16 - 11)"}
{"id": "countdown-heldout-001106", "source": "countdown", "nums": [2, 5, 8, 18], "target": 85, "question": "Using the numbers 2, 5, 8, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "5 * (8 + (18 / 2))"}
{"id": "countdown-heldout-001107", "source": "countdown", "nums": [2, 17, 19, 20], "target": 58, "question": "Using the numbers 2, 17, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(2 + 17) + (19 + 20)"}
{"id": "countdown-heldout-001108", "source": "countdown", "nums": [3, 12, 23, 24], "target": 13, "question": "Using the numbers 3, 12, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(3 + 23) * (12 / 24)"}
{"id": "countdown-heldout-001109", "source": "countdown", "nums": [2, 12, 23, 24], "target": 71, "question": "Using the numbers 2, 12, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(2 * 12) + (23 + 24)"}
{"id": "countdown-heldout-001110", "source": "countdown", "nums": [13, 15, 17, 18], "target": 26, "question": "Using the numbers 13, 15, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "17 - (18 / (13 - 15))"}
{"id": "countdown-heldout-001111", "source": "countdown", "nums": [2, 18, 19, 22], "target": 32, "question": "Using the numbers 2, 18, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(19 + 22) - (18 / 2)"}
{"id": "countdown-heldout-001112", "source": "countdown", "nums": [2, 7, 8, 9], "target": 39, "question": "Using the numbers 2, 7, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "9 + (2 * (7 + 8))"}
{"id": "countdown-heldout-001113", "source": "countdown", "nums": [10, 12, 14, 18], "target": 42, "question": "Using the numbers 10, 12, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(12 + 18) / (10 / 14)"}
{"id": "countdown-heldout-001114", "source": "countdown", "nums": [3, 5, 8, 13], "target": 75, "question": "Using the numbers 3, 5, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(3 * 5) * (13 - 8)"}
{"id": "countdown-heldout-001115", "source": "countdown", "nums": [4, 8, 12, 18], "target": 13, "question": "Using the numbers 4, 8, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "18 - ((8 + 12) / 4)"}
{"id": "countdown-heldout-001116", "source": "countdown", "nums": [1, 12, 15, 17], "target": 60, "question": "Using the numbers 1, 12, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "15 * (17 - (1 + 12))"}
{"id": "countdown-heldout-001117", "source": "countdown", "nums": [12, 17, 19, 22], "target": 39, "question": "Using the numbers 12, 17, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(17 * (22 - 19)) - 12"}
{"id": "countdown-heldout-001118", "source": "countdown", "nums": [1, 1, 5, 22], "target": 89, "question": "Using the numbers 1, 1, 5, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "1 - (22 * (1 - 5))"}
{"id": "countdown-heldout-001119", "source": "countdown", "nums": [5, 10, 20, 23], "target": 51, "question": "Using the numbers 5, 10, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "5 + (23 / (10 / 20))"}
{"id": "countdown-heldout-001120", "source": "countdown", "nums": [7, 16, 20, 24], "target": 36, "question": "Using the numbers 7, 16, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(7 - 16) * (20 - 24)"}
{"id": "countdown-heldout-001121", "source": "countdown", "nums": [3, 3, 11, 23], "target": 59, "question": "Using the numbers 3, 3, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(3 * 11) + (3 + 23)"}
{"id": "countdown-heldout-001122", "source": "countdown", "nums": [16, 17, 21, 22], "target": 25, "question": "Using the numbers 16, 17, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(16 - 21) * (17 - 22)"}
{"id": "countdown-heldout-001123", "source": "countdown", "nums": [2, 2, 11, 17], "target": 24, "question": "Using the numbers 2, 2, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(11 + 17) - (2 + 2)"}
{"id": "countdown-heldout-001124", "source": "countdown", "nums": [2, 4, 8, 23], "target": 76, "question": "Using the numbers 2, 4, 8, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(4 * 23) - (2 * 8)"}
{"id": "countdown-heldout-001125", "source": "countdown", "nums": [10, 10, 20, 23], "target": 21, "question": "Using the numbers 10, 10, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "((10 * 23) - 20) / 10"}
{"id": "countdown-heldout-001126", "source": "countdown", "nums": [8, 15, 17, 22], "target": 34, "question": "Using the numbers 8, 15, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(8 + 22) / (15 / 17)"}
{"id": "countdown-heldout-001127", "source": "countdown", "nums": [7, 7, 12, 14], "target": 55, "question": "Using the numbers 7, 7, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "7 * (7 + (12 / 14))"}
{"id": "countdown-heldout-001128", "source": "countdown", "nums": [7, 22, 24, 25], "target": 29, "question": "Using the numbers 7, 22, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(7 + 22) * (25 - 24)"}
{"id": "countdown-heldout-001129", "source": "countdown", "nums": [8, 10, 16, 16], "target": 18, "question": "Using the numbers 8, 10, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(8 + 10) + (16 - 16)"}
{"id": "countdown-heldout-001130", "source": "countdown", "nums": [12, 14, 20, 23], "target": 21, "question": "Using the numbers 12, 14, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "23 + (12 / (14 - 20))"}
{"id": "countdown-heldout-001131", "source": "countdown", "nums": [1, 2, 9, 11], "target": 86, "question": "Using the numbers 1, 2, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(11 * (9 - 1)) - 2"}
{"id": "countdown-heldout-001132", "source": "countdown", "nums": [5, 12, 17, 22], "target": 33, "question": "Using the numbers 5, 12, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(5 * (22 - 12)) - 17"}
{"id": "countdown-heldout-001133", "source": "countdown", "nums": [4, 5, 6, 13], "target": 67, "question": "Using the numbers 4, 5, 6, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "13 + (6 * (4 + 5))"}
{"id": "countdown-heldout-001134", "source": "countdown", "nums": [4, 5, 11, 14], "target": 47, "question": "Using the numbers 4, 5, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "11 - (4 * (5 - 14))"}
{"id": "countdown-heldout-001135", "source": "countdown", "nums": [5, 9, 21, 25], "target": 84, "question": "Using the numbers 5, 9, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "21 * (9 - (25 / 5))"}
{"id": "countdown-heldout-001136", "source": "countdown", "nums": [7, 13, 21, 25], "target": 88, "question": "Using the numbers 7, 13, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "13 + (25 / (7 / 21))"}
{"id": "countdown-heldout-001137", "source": "countdown", "nums": [10, 13, 15, 23], "target": 85, "question": "Using the numbers 10, 13, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(10 * (23 - 13)) - 15"}
{"id": "countdown-heldout-001138", "source": "countdown", "nums": [2, 5, 9, 21], "target": 20, "question": "Using the numbers 2, 5, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(9 + 21) - (2 * 5)"}
{"id": "countdown-heldout-001139", "source": "countdown", "nums": [6, 12, 16, 19], "target": 13, "question": "Using the numbers 6, 12, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(16 / (6 / 12)) - 19"}
{"id": "countdown-heldout-001140", "source": "countdown", "nums": [1, 3, 15, 24], "target": 87, "question": "Using the numbers 1, 3, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "15 + (24 * (1 * 3))"}
{"id": "countdown-heldout-001141", "source": "countdown", "nums": [4, 14, 20, 23], "target": 13, "question": "Using the numbers 4, 14, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "23 - (20 + (4 - 14))"}
{"id": "countdown-heldout-001142", "source": "countdown", "nums": [2, 2, 13, 15], "target": 54, "question": "Using the numbers 2, 2, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(2 * (13 + 15)) - 2"}
{"id": "countdown-heldout-001143", "source": "countdown", "nums": [3, 4, 5, 15], "target": 53, "question": "Using the numbers 3, 4, 5, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "5 - (4 * (3 - 15))"}
{"id": "countdown-heldout-001144", "source": "countdown", "nums": [1, 6, 8, 16], "target": 40, "question": "Using the numbers 1, 6, 8, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(8 * (1 + 6)) - 16"}
{"id": "countdown-heldout-001145", "source": "countdown", "nums": [1, 3, 18, 18], "target": 12, "question": "Using the numbers 1, 3, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(18 + 18) / (1 * 3)"}
{"id": "countdown-heldout-001146", "source": "countdown", "nums": [3, 4, 11, 12], "target": 66, "question": "Using the numbers 3, 4, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "11 * (3 + (12 / 4))"}
{"id": "countdown-heldout-001147", "source": "countdown", "nums": [2, 10, 12, 22], "target": 78, "question": "Using the numbers 2, 10, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(10 * (12 - 2)) - 22"}
{"id": "countdown-heldout-001148", "source": "countdown", "nums": [3, 5, 7, 10], "target": 38, "question": "Using the numbers 3, 5, 7, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(3 * (5 + 10)) - 7"}
{"id": "countdown-heldout-001149", "source": "countdown", "nums": [10, 18, 22, 22], "target": 52, "question": "Using the numbers 10, 18, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(22 + 22) - (10 - 18)"}
{"id": "countdown-heldout-001150", "source": "countdown", "nums": [1, 2, 8, 25], "target": 44, "question": "Using the numbers 1, 2, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(2 * (1 + 25)) - 8"}
{"id": "countdown-heldout-001151", "source": "countdown", "nums": [5, 12, 13, 17], "target": 72, "question": "Using the numbers 5, 12, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(13 + 17) / (5 / 12)"}
{"id": "countdown-heldout-001152", "source": "countdown", "nums": [10, 13, 17, 21], "target": 44, "question": "Using the numbers 10, 13, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(10 - 21) * (13 - 17)"}
{"id": "countdown-heldout-001153", "source": "countdown", "nums": [2, 6, 9, 12], "target": 69, "question": "Using the numbers 2, 6, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "9 - (6 * (2 - 12))"}
{"id": "countdown-heldout-001154", "source": "countdown", "nums": [8, 15, 20, 25], "target": 24, "question": "Using the numbers 8, 15, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(8 * 15) / (25 - 20)"}
{"id": "countdown-heldout-001155", "source": "countdown", "nums": [8, 11, 20, 24], "target": 100, "question": "Using the numbers 8, 11, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "20 * (24 - (8 + 11))"}
{"id": "countdown-heldout-001156", "source": "countdown", "nums": [3, 11, 24, 25], "target": 12, "question": "Using the numbers 3, 11, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(11 * 24) / (25 - 3)"}
{"id": "countdown-heldout-001157", "source": "countdown", "nums": [2, 9, 14, 23], "target": 33, "question": "Using the numbers 2, 9, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "23 - (2 * (9 - 14))"}
{"id": "countdown-heldout-001158", "source": "countdown", "nums": [1, 11, 19, 19], "target": 48, "question": "Using the numbers 1, 11, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(19 + 19) - (1 - 11)"}
{"id": "countdown-heldout-001159", "source": "countdown", "nums": [1, 1, 2, 9], "target": 27, "question": "Using the numbers 1, 1, 2, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "9 * (2 + (1 * 1))"}
{"id": "countdown-heldout-001160", "source": "countdown", "nums": [4, 20, 24, 25], "target": 65, "question": "Using the numbers 4, 20, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(24 + 25) - (4 - 20)"}
{"id": "countdown-heldout-001161", "source": "countdown", "nums": [1, 5, 7, 9], "target": 91, "question": "Using the numbers 1, 5, 7, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "7 * (9 - (1 - 5))"}
{"id": "countdown-heldout-001162", "source": "countdown", "nums": [1, 6, 11, 16], "target": 76, "question": "Using the numbers 1, 6, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "16 - (6 * (1 - 11))"}
{"id": "countdown-heldout-001163", "source": "countdown", "nums": [3, 7, 10, 17], "target": 60, "question": "Using the numbers 3, 7, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(3 + 17) * (10 - 7)"}
{"id": "countdown-heldout-001164", "source": "countdown", "nums": [7, 10, 14, 16], "target": 18, "question": "Using the numbers 7, 10, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "10 + (16 * (7 / 14))"}
{"id": "countdown-heldout-001165", "source": "countdown", "nums": [10, 12, 18, 20], "target": 30, "question": "Using the numbers 10, 12, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(12 * 20) / (18 - 10)"}
{"id": "countdown-heldout-001166", "source": "countdown", "nums": [5, 5, 13, 25], "target": 75, "question": "Using the numbers 5, 5, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "25 * (13 - (5 + 5))"}
{"id": "countdown-heldout-001167", "source": "countdown", "nums": [3, 13, 19, 23], "target": 31, "question": "Using the numbers 3, 13, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "19 + ((13 + 23) / 3)"}
{"id": "countdown-heldout-001168", "source": "countdown", "nums": [1, 12, 16, 22], "target": 84, "question": "Using the numbers 1, 12, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "12 * (22 + (1 - 16))"}
{"id": "countdown-heldout-001169", "source": "countdown", "nums": [13, 15, 19, 23], "target": 18, "question": "Using the numbers 13, 15, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(23 + (13 * 19)) / 15"}
{"id": "countdown-heldout-001170", "source": "countdown", "nums": [18, 23, 24, 25], "target": 15, "question": "Using the numbers 18, 23, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "24 + (18 / (23 - 25))"}
{"id": "countdown-heldout-001171", "source": "countdown", "nums": [5, 9, 14, 22], "target": 51, "question": "Using the numbers 5, 9, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(5 * (22 - 9)) - 14"}
{"id": "countdown-heldout-001172", "source": "countdown", "nums": [2, 10, 12, 22], "target": 49, "question": "Using the numbers 2, 10, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "((10 * 12) - 22) / 2"}
{"id": "countdown-heldout-001173", "source": "countdown", "nums": [4, 14, 21, 24], "target": 49, "question": "Using the numbers 4, 14, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(4 * 14) * (21 / 24)"}
{"id": "countdown-heldout-001174", "source": "countdown", "nums": [7, 12, 20, 24], "target": 100, "question": "Using the numbers 7, 12, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "20 * (24 - (7 + 12))"}
{"id": "countdown-heldout-001175", "source": "countdown", "nums": [1, 4, 6, 24], "target": 15, "question": "Using the numbers 1, 4, 6, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(1 - 4) - (6 - 24)"}
{"id": "countdown-heldout-001176", "source": "countdown", "nums": [5, 16, 18, 18], "target": 56, "question": "Using the numbers 5, 16, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(5 * 18) - (16 + 18)"}
{"id": "countdown-heldout-001177", "source": "countdown", "nums": [2, 11, 22, 23], "target": 98, "question": "Using the numbers 2, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(22 / (2 / 11)) - 23"}
{"id": "countdown-heldout-001178", "source": "countdown", "nums": [13, 16, 20, 24], "target": 12, "question": "Using the numbers 13, 16, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(13 - 16) * (20 - 24)"}
{"id": "countdown-heldout-001179", "source": "countdown", "nums": [7, 12, 18, 20], "target": 37, "question": "Using the numbers 7, 12, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "7 + (20 / (12 / 18))"}
{"id": "countdown-heldout-001180", "source": "countdown", "nums": [5, 5, 19, 20], "target": 91, "question": "Using the numbers 5, 5, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(5 * 19) - (20 / 5)"}
{"id": "countdown-heldout-001181", "source": "countdown", "nums": [5, 10, 14, 23], "target": 85, "question": "Using the numbers 5, 10, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(10 * (23 - 14)) - 5"}
{"id": "countdown-heldout-001182", "source": "countdown", "nums": [3, 14, 16, 18], "target": 24, "question": "Using the numbers 3, 14, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(3 + 18) / (14 / 16)"}
{"id": "countdown-heldout-001183", "source": "countdown", "nums": [5, 8, 15, 17], "target": 98, "question": "Using the numbers 5, 8, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(8 * 15) - (5 + 17)"}
{"id": "countdown-heldout-001184", "source": "countdown", "nums": [6, 15, 17, 24], "target": 60, "question": "Using the numbers 6, 15, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(6 + 24) * (17 - 15)"}
{"id": "countdown-heldout-001185", "source": "countdown", "nums": [4, 6, 18, 19], "target": 12, "question": "Using the numbers 4, 6, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "19 - (4 + (18 / 6))"}
{"id": "countdown-heldout-001186", "source": "countdown", "nums": [2, 5, 15, 19], "target": 21, "question": "Using the numbers 2, 5, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(2 * (5 + 15)) - 19"}
{"id": "countdown-heldout-001187", "source": "countdown", "nums": [9, 11, 11, 21], "target": 43, "question": "Using the numbers 9, 11, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "21 - (11 * (9 - 11))"}
{"id": "countdown-heldout-001188", "source": "countdown", "nums": [4, 9, 9, 13], "target": 52, "question": "Using the numbers 4, 9, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(4 + 9) * (13 - 9)"}
{"id": "countdown-heldout-001189", "source": "countdown", "nums": [12, 13, 16, 17], "target": 26, "question": "Using the numbers 12, 13, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(12 + 13) - (16 - 17)"}
{"id": "countdown-heldout-001190", "source": "countdown", "nums": [2, 5, 14, 16], "target": 68, "question": "Using the numbers 2, 5, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(2 - 14) + (5 * 16)"}
{"id": "countdown-heldout-001191", "source": "countdown", "nums": [3, 4, 11, 15], "target": 71, "question": "Using the numbers 3, 4, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "15 + (4 * (3 + 11))"}
{"id": "countdown-heldout-001192", "source": "countdown", "nums": [7, 7, 17, 24], "target": 46, "question": "Using the numbers 7, 7, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(7 * (17 - 7)) - 24"}
{"id": "countdown-heldout-001193", "source": "countdown", "nums": [2, 3, 9, 15], "target": 52, "question": "Using the numbers 2, 3, 9, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(3 * 15) - (2 - 9)"}
{"id": "countdown-heldout-001194", "source": "countdown", "nums": [14, 17, 20, 20], "target": 46, "question": "Using the numbers 14, 17, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(20 * (20 - 17)) - 14"}
{"id": "countdown-heldout-001195", "source": "countdown", "nums": [1, 3, 8, 15], "target": 56, "question": "Using the numbers 1, 3, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "8 + (3 * (1 + 15))"}
{"id": "countdown-heldout-001196", "source": "countdown", "nums": [3, 3, 6, 19], "target": 30, "question": "Using the numbers 3, 3, 6, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "3 * (19 - (3 + 6))"}
{"id": "countdown-heldout-001197", "source": "countdown", "nums": [13, 14, 15, 21], "target": 23, "question": "Using the numbers 13, 14, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "21 + ((13 + 15) / 14)"}
{"id": "countdown-heldout-001198", "source": "countdown", "nums": [1, 11, 11, 14], "target": 13, "question": "Using the numbers 1, 11, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(11 + 14) - (1 + 11)"}
{"id": "countdown-heldout-001199", "source": "countdown", "nums": [6, 11, 13, 25], "target": 38, "question": "Using the numbers 6, 11, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(6 - 25) * (11 - 13)"}
{"id": "countdown-heldout-001200", "source": "countdown", "nums": [3, 7, 10, 10], "target": 61, "question": "Using the numbers 3, 7, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "10 + (3 * (7 + 10))"}
{"id": "countdown-heldout-001201", "source": "countdown", "nums": [7, 12, 16, 20], "target": 64, "question": "Using the numbers 7, 12, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(16 * 20) / (12 - 7)"}
{"id": "countdown-heldout-001202", "source": "countdown", "nums": [3, 4, 10, 15], "target": 13, "question": "Using the numbers 3, 4, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(10 + 15) - (3 * 4)"}
{"id": "countdown-heldout-001203", "source": "countdown", "nums": [1, 6, 9, 21], "target": 23, "question": "Using the numbers 1, 6, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(9 + 21) - (1 + 6)"}
{"id": "countdown-heldout-001204", "source": "countdown", "nums": [18, 18, 21, 22], "target": 32, "question": "Using the numbers 18, 18, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(18 * (21 - 18)) - 22"}
{"id": "countdown-heldout-001205", "source": "countdown", "nums": [18, 20, 22, 24], "target": 60, "question": "Using the numbers 18, 20, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "24 - (18 * (20 - 22))"}
{"id": "countdown-heldout-001206", "source": "countdown", "nums": [3, 17, 19, 25], "target": 31, "question": "Using the numbers 3, 17, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "25 - (3 * (17 - 19))"}
{"id": "countdown-heldout-001207", "source": "countdown", "nums": [5, 22, 24, 24], "target": 17, "question": "Using the numbers 5, 22, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(24 - 24) - (5 - 22)"}
{"id": "countdown-heldout-001208", "source": "countdown", "nums": [2, 10, 10, 18], "target": 26, "question": "Using the numbers 2, 10, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "10 - (2 * (10 - 18))"}
{"id": "countdown-heldout-001209", "source": "countdown", "nums": [5, 15, 16, 18], "target": 66, "question": "Using the numbers 5, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "18 + (16 / (5 / 15))"}
{"id": "countdown-heldout-001210", "source": "countdown", "nums": [8, 8, 11, 24], "target": 16, "question": "Using the numbers 8, 8, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(8 + 11) - (24 / 8)"}
{"id": "countdown-heldout-001211", "source": "countdown", "nums": [2, 8, 11, 18], "target": 17, "question": "Using the numbers 2, 8, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(2 + 8) - (11 - 18)"}
{"id": "countdown-heldout-001212", "source": "countdown", "nums": [2, 22, 23, 25], "target": 23, "question": "Using the numbers 2, 22, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "23 * (25 - (2 + 22))"}
{"id": "countdown-heldout-001213", "source": "countdown", "nums": [2, 7, 14, 16], "target": 54, "question": "Using the numbers 2, 7, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(14 * (7 - 2)) - 16"}
{"id": "countdown-heldout-001214", "source": "countdown", "nums": [3, 5, 15, 22], "target": 16, "question": "Using the numbers 3, 5, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "22 - (3 + (15 / 5))"}
{"id": "countdown-heldout-001215", "source": "countdown", "nums": [4, 5, 10, 20], "target": 98, "question": "Using the numbers 4, 5, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "5 * (20 - (4 / 10))"}
{"id": "countdown-heldout-001216", "source": "countdown", "nums": [8, 8, 9, 24], "target": 97, "question": "Using the numbers 8, 8, 9, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(8 * 8) + (9 + 24)"}
{"id": "countdown-heldout-001217", "source": "countdown", "nums": [4, 10, 16, 19], "target": 42, "question": "Using the numbers 4, 10, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(4 + 10) * (19 - 16)"}
{"id": "countdown-heldout-001218", "source": "countdown", "nums": [7, 10, 10, 20], "target": 13, "question": "Using the numbers 7, 10, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(10 + 20) - (7 + 10)"}
{"id": "countdown-heldout-001219", "source": "countdown", "nums": [1, 10, 15, 17], "target": 84, "question": "Using the numbers 1, 10, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(17 * (15 - 10)) - 1"}
{"id": "countdown-heldout-001220", "source": "countdown", "nums": [3, 5, 11, 15], "target": 100, "question": "Using the numbers 3, 5, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(3 * 15) + (5 * 11)"}
{"id": "countdown-heldout-001221", "source": "countdown", "nums": [6, 9, 20, 25], "target": 85, "question": "Using the numbers 6, 9, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "25 - (20 * (6 - 9))"}
{"id": "countdown-heldout-001222", "source": "countdown", "nums": [7, 9, 13, 25], "target": 25, "question": "Using the numbers 7, 9, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(7 * 9) - (13 + 25)"}
{"id": "countdown-heldout-001223", "source": "countdown", "nums": [1, 9, 12, 14], "target": 20, "question": "Using the numbers 1, 9, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(1 + 9) * (14 - 12)"}
{"id": "countdown-heldout-001224", "source": "countdown", "nums": [4, 11, 16, 24], "target": 91, "question": "Using the numbers 4, 11, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(4 * 24) + (11 - 16)"}
{"id": "countdown-heldout-001225", "source": "countdown", "nums": [3, 13, 17, 18], "target": 100, "question": "Using the numbers 3, 13, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(3 + 17) * (18 - 13)"}
{"id": "countdown-heldout-001226", "source": "countdown", "nums": [3, 4, 7, 13], "target": 14, "question": "Using the numbers 3, 4, 7, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "13 + (7 / (3 + 4))"}
{"id": "countdown-heldout-001227", "source": "countdown", "nums": [6, 16, 17, 21], "target": 18, "question": "Using the numbers 6, 16, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(6 + 16) + (17 - 21)"}
{"id": "countdown-heldout-001228", "source": "countdown", "nums": [5, 8, 11, 18], "target": 33, "question": "Using the numbers 5, 8, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(5 * 8) + (11 - 18)"}
{"id": "countdown-heldout-001229", "source": "countdown", "nums": [2, 4, 7, 21], "target": 42, "question": "Using the numbers 2, 4, 7, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "21 / (4 - (7 / 2))"}
{"id": "countdown-heldout-001230", "source": "countdown", "nums": [1, 5, 14, 21], "target": 56, "question": "Using the numbers 1, 5, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(21 - 1) / (5 / 14)"}
{"id": "countdown-heldout-001231", "source": "countdown", "nums": [2, 7, 18, 24], "target": 16, "question": "Using the numbers 2, 7, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(2 * (24 - 7)) - 18"}
{"id": "countdown-heldout-001232", "source": "countdown", "nums": [3, 7, 9, 16], "target": 82, "question": "Using the numbers 3, 7, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(3 + 16) + (7 * 9)"}
{"id": "countdown-heldout-001233", "source": "countdown", "nums": [3, 6, 7, 9], "target": 74, "question": "Using the numbers 3, 6, 7, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(9 * (3 + 6)) - 7"}
{"id": "countdown-heldout-001234", "source": "countdown", "nums": [2, 4, 20, 25], "target": 62, "question": "Using the numbers 2, 4, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "20 - (2 * (4 - 25))"}
{"id": "countdown-heldout-001235", "source": "countdown", "nums": [3, 14, 19, 20], "target": 38, "question": "Using the numbers 3, 14, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(20 - 14) / (3 / 19)"}
{"id": "countdown-heldout-001236", "source": "countdown", "nums": [2, 6, 7, 12], "target": 72, "question": "Using the numbers 2, 6, 7, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(7 * 12) - (2 * 6)"}
{"id": "countdown-heldout-001237", "source": "countdown", "nums": [2, 6, 17, 20], "target": 22, "question": "Using the numbers 2, 6, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "17 - (20 / (2 - 6))"}
{"id": "countdown-heldout-001238", "source": "countdown", "nums": [14, 15, 19, 19], "target": 67, "question": "Using the numbers 14, 15, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(14 + 15) + (19 + 19)"}
{"id": "countdown-heldout-001239", "source": "countdown", "nums": [5, 8, 9, 12], "target": 81, "question": "Using the numbers 5, 8, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "9 * (12 + (5 - 8))"}
{"id": "countdown-heldout-001240", "source": "countdown", "nums": [3, 12, 16, 20], "target": 84, "question": "Using the numbers 3, 12, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "20 + (16 / (3 / 12))"}
{"id": "countdown-heldout-001241", "source": "countdown", "nums": [4, 14, 22, 24], "target": 88, "question": "Using the numbers 4, 14, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(4 * 24) + (14 - 22)"}
{"id": "countdown-heldout-001242", "source": "countdown", "nums": [6, 12, 16, 16], "target": 17, "question": "Using the numbers 6, 12, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(6 + 12) - (16 / 16)"}
{"id": "countdown-heldout-001243", "source": "countdown", "nums": [4, 6, 7, 19], "target": 23, "question": "Using the numbers 4, 6, 7, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(4 + 19) * (7 - 6)"}
{"id": "countdown-heldout-001244", "source": "countdown", "nums": [3, 6, 19, 21], "target": 77, "question": "Using the numbers 3, 6, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(3 + 19) / (6 / 21)"}
{"id": "countdown-heldout-001245", "source": "countdown", "nums": [10, 19, 20, 21], "target": 28, "question": "Using the numbers 10, 19, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(10 + 19) + (20 - 21)"}
{"id": "countdown-heldout-001246", "source": "countdown", "nums": [3, 6, 11, 12], "target": 12, "question": "Using the numbers 3, 6, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(3 + 11) - (12 / 6)"}
{"id": "countdown-heldout-001247", "source": "countdown", "nums": [2, 2, 12, 24], "target": 13, "question": "Using the numbers 2, 2, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(2 / 2) - (12 - 24)"}
{"id": "countdown-heldout-001248", "source": "countdown", "nums": [4, 6, 21, 22], "target": 28, "question": "Using the numbers 4, 6, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "4 * (22 + (6 - 21))"}
{"id": "countdown-heldout-001249", "source": "countdown", "nums": [3, 8, 14, 23], "target": 24, "question": "Using the numbers 3, 8, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(23 - 14) / (3 / 8)"}
{"id": "countdown-heldout-001250", "source": "countdown", "nums": [13, 15, 22, 25], "target": 75, "question": "Using the numbers 13, 15, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(13 + 15) + (22 + 25)"}
{"id": "countdown-heldout-001251", "source": "countdown", "nums": [4, 4, 13, 21], "target": 35, "question": "Using the numbers 4, 4, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(4 / 4) + (13 + 21)"}
{"id": "countdown-heldout-001252", "source": "countdown", "nums": [5, 15, 24, 25], "target": 74, "question": "Using the numbers 5, 15, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(5 * 15) + (24 - 25)"}
{"id": "countdown-heldout-001253", "source": "countdown", "nums": [8, 16, 16, 22], "target": 26, "question": "Using the numbers 8, 16, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "22 + ((16 + 16) / 8)"}
{"id": "countdown-heldout-001254", "source": "countdown", "nums": [18, 18, 20, 24], "target": 17, "question": "Using the numbers 18, 18, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "20 + (18 / (18 - 24))"}
{"id": "countdown-heldout-001255", "source": "countdown", "nums": [3, 12, 21, 22], "target": 93, "question": "Using the numbers 3, 12, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "3 * (22 - (12 - 21))"}
{"id": "countdown-heldout-001256", "source": "countdown", "nums": [2, 2, 17, 25], "target": 23, "question": "Using the numbers 2, 2, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "2 + ((17 + 25) / 2)"}
{"id": "countdown-heldout-001257", "source": "countdown", "nums": [8, 12, 14, 21], "target": 15, "question": "Using the numbers 8, 12, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(14 + 21) - (8 + 12)"}
{"id": "countdown-heldout-001258", "source": "countdown", "nums": [2, 8, 12, 16], "target": 97, "question": "Using the numbers 2, 8, 12, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "8 * (12 + (2 / 16))"}
{"id": "countdown-heldout-001259", "source": "countdown", "nums": [12, 14, 19, 22], "target": 22, "question": "Using the numbers 12, 14, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "19 + ((14 + 22) / 12)"}
{"id": "countdown-heldout-001260", "source": "countdown", "nums": [7, 12, 17, 23], "target": 13, "question": "Using the numbers 7, 12, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(7 + 12) + (17 - 23)"}
{"id": "countdown-heldout-001261", "source": "countdown", "nums": [2, 3, 7, 21], "target": 92, "question": "Using the numbers 2, 3, 7, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(2 + 21) * (7 - 3)"}
{"id": "countdown-heldout-001262", "source": "countdown", "nums": [4, 5, 8, 25], "target": 18, "question": "Using the numbers 4, 5, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "25 - (8 + (4 - 5))"}
{"id": "countdown-heldout-001263", "source": "countdown", "nums": [4, 6, 15, 16], "target": 70, "question": "Using the numbers 4, 6, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(4 * 15) - (6 - 16)"}
{"id": "countdown-heldout-001264", "source": "countdown", "nums": [3, 9, 18, 22], "target": 27, "question": "Using the numbers 3, 9, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(3 + 22) + (18 / 9)"}
{"id": "countdown-heldout-001265", "source": "countdown", "nums": [2, 9, 21, 25], "target": 44, "question": "Using the numbers 2, 9, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(2 + 9) * (25 - 21)"}
{"id": "countdown-heldout-001266", "source": "countdown", "nums": [8, 9, 18, 20], "target": 56, "question": "Using the numbers 8, 9, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(8 + 20) / (9 / 18)"}
{"id": "countdown-heldout-001267", "source": "countdown", "nums": [5, 14, 14, 15], "target": 71, "question": "Using the numbers 5, 14, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(5 * 14) - (14 - 15)"}
{"id": "countdown-heldout-001268", "source": "countdown", "nums": [4, 4, 6, 25], "target": 10, "question": "Using the numbers 4, 4, 6, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(4 * 25) / (4 + 6)"}
{"id": "countdown-heldout-001269", "source": "countdown", "nums": [4, 11, 19, 20], "target": 25, "question": "Using the numbers 4, 11, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(11 + 19) - (20 / 4)"}
{"id": "countdown-heldout-001270", "source": "countdown", "nums": [9, 10, 12, 13], "target": 31, "question": "Using the numbers 9, 10, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "13 - (9 * (10 - 12))"}
{"id": "countdown-heldout-001271", "source": "countdown", "nums": [4, 9, 12, 13], "target": 35, "question": "Using the numbers 4, 9, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(4 * 9) + (12 - 13)"}
{"id": "countdown-heldout-001272", "source": "countdown", "nums": [2, 6, 12, 13], "target": 68, "question": "Using the numbers 2, 6, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(2 - 12) + (6 * 13)"}
{"id": "countdown-heldout-001273", "source": "countdown", "nums": [4, 7, 13, 15], "target": 13, "question": "Using the numbers 4, 7, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(4 + 7) - (13 - 15)"}
{"id": "countdown-heldout-001274", "source": "countdown", "nums": [12, 14, 20, 21], "target": 51, "question": "Using the numbers 12, 14, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(12 * (20 - 14)) - 21"}
{"id": "countdown-heldout-001275", "source": "countdown", "nums": [2, 9, 10, 22], "target": 36, "question": "Using the numbers 2, 9, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(9 + 22) + (10 / 2)"}
{"id": "countdown-heldout-001276", "source": "countdown", "nums": [6, 10, 14, 17], "target": 36, "question": "Using the numbers 6, 10, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "6 - (10 * (14 - 17))"}
{"id": "countdown-heldout-001277", "source": "countdown", "nums": [7, 14, 19, 21], "target": 99, "question": "Using the numbers 7, 14, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(14 + 19) / (7 / 21)"}
{"id": "countdown-heldout-001278", "source": "countdown", "nums": [3, 13, 19, 20], "target": 92, "question": "Using the numbers 3, 13, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(3 * 20) + (13 + 19)"}
{"id": "countdown-heldout-001279", "source": "countdown", "nums": [4, 5, 9, 16], "target": 50, "question": "Using the numbers 4, 5, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(4 * 16) - (5 + 9)"}
{"id": "countdown-heldout-001280", "source": "countdown", "nums": [7, 17, 17, 18], "target": 45, "question": "Using the numbers 7, 17, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(17 + 18) - (7 - 17)"}
{"id": "countdown-heldout-001281", "source": "countdown", "nums": [3, 5, 8, 16], "target": 56, "question": "Using the numbers 3, 5, 8, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(5 * 16) - (3 * 8)"}
{"id": "countdown-heldout-001282", "source": "countdown", "nums": [6, 6, 11, 22], "target": 33, "question": "Using the numbers 6, 6, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(6 - 6) + (11 + 22)"}
{"id": "countdown-heldout-001283", "source": "countdown", "nums": [2, 3, 5, 24], "target": 41, "question": "Using the numbers 2, 3, 5, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "5 + (24 / (2 / 3))"}
{"id": "countdown-heldout-001284", "source": "countdown", "nums": [3, 6, 18, 23], "target": 24, "question": "Using the numbers 3, 6, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "23 + (18 / (3 * 6))"}
{"id": "countdown-heldout-001285", "source": "countdown", "nums": [4, 19, 19, 23], "target": 91, "question": "Using the numbers 4, 19, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(4 * 23) - (19 / 19)"}
{"id": "countdown-heldout-001286", "source": "countdown", "nums": [5, 10, 14, 17], "target": 97, "question": "Using the numbers 5, 10, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(5 * 14) + (10 + 17)"}
{"id": "countdown-heldout-001287", "source": "countdown", "nums": [3, 8, 9, 14], "target": 30, "question": "Using the numbers 3, 8, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(8 * 9) - (3 * 14)"}
{"id": "countdown-heldout-001288", "source": "countdown", "nums": [12, 15, 24, 24], "target": 12, "question": "Using the numbers 12, 15, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "12 + (15 * (24 - 24))"}
{"id": "countdown-heldout-001289", "source": "countdown", "nums": [7, 8, 16, 24], "target": 57, "question": "Using the numbers 7, 8, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(8 * (24 - 16)) - 7"}
{"id": "countdown-heldout-001290", "source": "countdown", "nums": [5, 9, 25, 25], "target": 46, "question": "Using the numbers 5, 9, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(5 - 9) + (25 + 25)"}
{"id": "countdown-heldout-001291", "source": "countdown", "nums": [3, 3, 20, 24], "target": 35, "question": "Using the numbers 3, 3, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(20 + 24) - (3 * 3)"}
{"id": "countdown-heldout-001292", "source": "countdown", "nums": [15, 18, 20, 21], "target": 40, "question": "Using the numbers 15, 18, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(15 + 21) / (18 / 20)"}
{"id": "countdown-heldout-001293", "source": "countdown", "nums": [3, 7, 8, 14], "target": 11, "question": "Using the numbers 3, 7, 8, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(3 - 14) * (7 - 8)"}
{"id": "countdown-heldout-001294", "source": "countdown", "nums": [4, 10, 11, 25], "target": 99, "question": "Using the numbers 4, 10, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(4 * 25) + (10 - 11)"}
{"id": "countdown-heldout-001295", "source": "countdown", "nums": [1, 1, 15, 19], "target": 15, "question": "Using the numbers 1, 1, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "15 + (19 * (1 - 1))"}
{"id": "countdown-heldout-001296", "source": "countdown", "nums": [9, 19, 24, 24], "target": 19, "question": "Using the numbers 9, 19, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "19 + (9 * (24 - 24))"}
{"id": "countdown-heldout-001297", "source": "countdown", "nums": [1, 5, 11, 19], "target": 63, "question": "Using the numbers 1, 5, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "19 - (11 * (1 - 5))"}
{"id": "countdown-heldout-001298", "source": "countdown", "nums": [3, 14, 21, 23], "target": 10, "question": "Using the numbers 3, 14, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(23 - (14 - 21)) / 3"}
{"id": "countdown-heldout-001299", "source": "countdown", "nums": [2, 4, 8, 20], "target": 64, "question": "Using the numbers 2, 4, 8, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(4 * 20) - (2 * 8)"}
{"id": "countdown-heldout-001300", "source": "countdown", "nums": [1, 5, 8, 23], "target": 75, "question": "Using the numbers 1, 5, 8, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(1 * 5) * (23 - 8)"}
{"id": "countdown-heldout-001301", "source": "countdown", "nums": [1, 4, 13, 18], "target": 89, "question": "Using the numbers 1, 4, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 89.", "answer": "13 + (4 * (1 + 18))"}
{"id": "countdown-heldout-001302", "source": "countdown", "nums": [2, 5, 9, 12], "target": 79, "question": "Using the numbers 2, 5, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "9 + (5 * (2 + 12))"}
{"id": "countdown-heldout-001303", "source": "countdown", "nums": [8, 9, 9, 25], "target": 32, "question": "Using the numbers 8, 9, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(8 + 25) - (9 / 9)"}
{"id": "countdown-heldout-001304", "source": "countdown", "nums": [2, 2, 14, 14], "target": 27, "question": "Using the numbers 2, 2, 14, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(14 + 14) - (2 / 2)"}
{"id": "countdown-heldout-001305", "source": "countdown", "nums": [2, 7, 16, 19], "target": 27, "question": "Using the numbers 2, 7, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(2 + 7) * (19 - 16)"}
{"id": "countdown-heldout-001306", "source": "countdown", "nums": [2, 14, 15, 20], "target": 72, "question": "Using the numbers 2, 14, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "2 - (14 * (15 - 20))"}
{"id": "countdown-heldout-001307", "source": "countdown", "nums": [2, 13, 17, 22], "target": 31, "question": "Using the numbers 2, 13, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(2 * 13) - (17 - 22)"}
{"id": "countdown-heldout-001308", "source": "countdown", "nums": [5, 7, 9, 19], "target": 77, "question": "Using the numbers 5, 7, 9, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(7 * 9) - (5 - 19)"}
{"id": "countdown-heldout-001309", "source": "countdown", "nums": [2, 7, 9, 13], "target": 19, "question": "Using the numbers 2, 7, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(2 * (7 + 9)) - 13"}
{"id": "countdown-heldout-001310", "source": "countdown", "nums": [3, 5, 22, 25], "target": 30, "question": "Using the numbers 3, 5, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(3 + 22) + (25 / 5)"}
{"id": "countdown-heldout-001311", "source": "countdown", "nums": [2, 13, 14, 23], "target": 29, "question": "Using the numbers 2, 13, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(13 + 23) - (14 / 2)"}
{"id": "countdown-heldout-001312", "source": "countdown", "nums": [2, 4, 11, 23], "target": 36, "question": "Using the numbers 2, 4, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(11 + 23) - (2 - 4)"}
{"id": "countdown-heldout-001313", "source": "countdown", "nums": [5, 6, 14, 17], "target": 13, "question": "Using the numbers 5, 6, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "17 - ((6 + 14) / 5)"}
{"id": "countdown-heldout-001314", "source": "countdown", "nums": [6, 6, 10, 17], "target": 77, "question": "Using the numbers 6, 6, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "6 * (10 + (17 / 6))"}
{"id": "countdown-heldout-001315", "source": "countdown", "nums": [4, 8, 22, 24], "target": 12, "question": "Using the numbers 4, 8, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(8 * (24 - 22)) - 4"}
{"id": "countdown-heldout-001316", "source": "countdown", "nums": [1, 5, 6, 20], "target": 99, "question": "Using the numbers 1, 5, 6, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(5 * (1 + 20)) - 6"}
{"id": "countdown-heldout-001317", "source": "countdown", "nums": [3, 18, 19, 24], "target": 73, "question": "Using the numbers 3, 18, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(3 * 24) - (18 - 19)"}
{"id": "countdown-heldout-001318", "source": "countdown", "nums": [2, 4, 22, 25], "target": 27, "question": "Using the numbers 2, 4, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(2 * (4 + 22)) - 25"}
{"id": "countdown-heldout-001319", "source": "countdown", "nums": [5, 9, 11, 17], "target": 68, "question": "Using the numbers 5, 9, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(9 + 11) / (5 / 17)"}
{"id": "countdown-heldout-001320", "source": "countdown", "nums": [9, 9, 10, 17], "target": 62, "question": "Using the numbers 9, 9, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(9 * (17 - 9)) - 10"}
{"id": "countdown-heldout-001321", "source": "countdown", "nums": [9, 10, 19, 23], "target": 17, "question": "Using the numbers 9, 10, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(9 * 23) - (10 * 19)"}
{"id": "countdown-heldout-001322", "source": "countdown", "nums": [2, 3, 20, 20], "target": 43, "question": "Using the numbers 2, 3, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "20 * (2 + (3 / 20))"}
{"id": "countdown-heldout-001323", "source": "countdown", "nums": [8, 13, 24, 24], "target": 40, "question": "Using the numbers 8, 13, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(13 + 24) + (24 / 8)"}
{"id": "countdown-heldout-001324", "source": "countdown", "nums": [1, 9, 20, 22], "target": 90, "question": "Using the numbers 1, 9, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "9 / ((22 / 20) - 1)"}
{"id": "countdown-heldout-001325", "source": "countdown", "nums": [12, 16, 17, 23], "target": 10, "question": "Using the numbers 12, 16, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "23 - (17 + (12 - 16))"}
{"id": "countdown-heldout-001326", "source": "countdown", "nums": [4, 7, 10, 14], "target": 56, "question": "Using the numbers 4, 7, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "14 - (7 * (4 - 10))"}
{"id": "countdown-heldout-001327", "source": "countdown", "nums": [2, 12, 18, 21], "target": 21, "question": "Using the numbers 2, 12, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(2 * 12) + (18 - 21)"}
{"id": "countdown-heldout-001328", "source": "countdown", "nums": [1, 4, 19, 23], "target": 80, "question": "Using the numbers 1, 4, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "23 - (19 * (1 - 4))"}
{"id": "countdown-heldout-001329", "source": "countdown", "nums": [3, 5, 10, 23], "target": 84, "question": "Using the numbers 3, 5, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(3 * 23) + (5 + 10)"}
{"id": "countdown-heldout-001330", "source": "countdown", "nums": [6, 18, 19, 21], "target": 17, "question": "Using the numbers 6, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "19 + (6 / (18 - 21))"}
{"id": "countdown-heldout-001331", "source": "countdown", "nums": [6, 6, 15, 24], "target": 18, "question": "Using the numbers 6, 6, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "6 * (24 - (6 + 15))"}
{"id": "countdown-heldout-001332", "source": "countdown", "nums": [3, 4, 6, 11], "target": 55, "question": "Using the numbers 3, 4, 6, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "11 * (6 + (3 - 4))"}
{"id": "countdown-heldout-001333", "source": "countdown", "nums": [4, 8, 11, 24], "target": 64, "question": "Using the numbers 4, 8, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "((11 * 24) - 8) / 4"}
{"id": "countdown-heldout-001334", "source": "countdown", "nums": [8, 19, 20, 21], "target": 32, "question": "Using the numbers 8, 19, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(20 * (21 - 19)) - 8"}
{"id": "countdown-heldout-001335", "source": "countdown", "nums": [9, 10, 15, 20], "target": 39, "question": "Using the numbers 9, 10, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "9 + (20 / (10 / 15))"}
{"id": "countdown-heldout-001336", "source": "countdown", "nums": [2, 13, 16, 25], "target": 11, "question": "Using the numbers 2, 13, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(25 + (13 - 16)) / 2"}
{"id": "countdown-heldout-001337", "source": "countdown", "nums": [3, 9, 16, 20], "target": 12, "question": "Using the numbers 3, 9, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(3 / 9) * (16 + 20)"}
{"id": "countdown-heldout-001338", "source": "countdown", "nums": [8, 11, 12, 13], "target": 68, "question": "Using the numbers 8, 11, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(12 * 13) - (8 * 11)"}
{"id": "countdown-heldout-001339", "source": "countdown", "nums": [4, 10, 15, 17], "target": 28, "question": "Using the numbers 4, 10, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(4 + 10) * (17 - 15)"}
{"id": "countdown-heldout-001340", "source": "countdown", "nums": [11, 15, 17, 19], "target": 46, "question": "Using the numbers 11, 15, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(15 * 17) - (11 * 19)"}
{"id": "countdown-heldout-001341", "source": "countdown", "nums": [4, 6, 7, 8], "target": 66, "question": "Using the numbers 4, 6, 7, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(4 + 6) + (7 * 8)"}
{"id": "countdown-heldout-001342", "source": "countdown", "nums": [8, 16, 17, 21], "target": 16, "question": "Using the numbers 8, 16, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(8 * (21 - 17)) - 16"}
{"id": "countdown-heldout-001343", "source": "countdown", "nums": [6, 10, 14, 23], "target": 71, "question": "Using the numbers 6, 10, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(6 * 14) + (10 - 23)"}
{"id": "countdown-heldout-001344", "source": "countdown", "nums": [3, 9, 11, 14], "target": 46, "question": "Using the numbers 3, 9, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(3 * (9 + 11)) - 14"}
{"id": "countdown-heldout-001345", "source": "countdown", "nums": [5, 11, 21, 21], "target": 86, "question": "Using the numbers 5, 11, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "((21 * 21) - 11) / 5"}
{"id": "countdown-heldout-001346", "source": "countdown", "nums": [12, 15, 18, 21], "target": 81, "question": "Using the numbers 12, 15, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(12 + 15) * (21 - 18)"}
{"id": "countdown-heldout-001347", "source": "countdown", "nums": [3, 4, 5, 8], "target": 27, "question": "Using the numbers 3, 4, 5, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(5 * (3 + 4)) - 8"}
{"id": "countdown-heldout-001348", "source": "countdown", "nums": [5, 6, 6, 20], "target": 96, "question": "Using the numbers 5, 6, 6, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "6 - (6 * (5 - 20))"}
{"id": "countdown-heldout-001349", "source": "countdown", "nums": [1, 1, 15, 18], "target": 12, "question": "Using the numbers 1, 1, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(15 * (1 + 1)) - 18"}
{"id": "countdown-heldout-001350", "source": "countdown", "nums": [4, 4, 8, 11], "target": 72, "question": "Using the numbers 4, 4, 8, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(8 * 11) - (4 * 4)"}
{"id": "countdown-heldout-001351", "source": "countdown", "nums": [6, 6, 19, 24], "target": 96, "question": "Using the numbers 6, 6, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(6 * 19) + (6 - 24)"}
{"id": "countdown-heldout-001352", "source": "countdown", "nums": [5, 9, 12, 14], "target": 69, "question": "Using the numbers 5, 9, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(9 * (14 - 5)) - 12"}
{"id": "countdown-heldout-001353", "source": "countdown", "nums": [5, 6, 9, 15], "target": 85, "question": "Using the numbers 5, 6, 9, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "15 * (5 + (6 / 9))"}
{"id": "countdown-heldout-001354", "source": "countdown", "nums": [2, 6, 10, 13], "target": 85, "question": "Using the numbers 2, 6, 10, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "13 + (6 * (2 + 10))"}
{"id": "countdown-heldout-001355", "source": "countdown", "nums": [5, 6, 15, 18], "target": 36, "question": "Using the numbers 5, 6, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(5 * 6) / (15 / 18)"}
{"id": "countdown-heldout-001356", "source": "countdown", "nums": [5, 9, 17, 25], "target": 53, "question": "Using the numbers 5, 9, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(5 * 9) - (17 - 25)"}
{"id": "countdown-heldout-001357", "source": "countdown", "nums": [6, 9, 14, 19], "target": 75, "question": "Using the numbers 6, 9, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(6 + 9) * (19 - 14)"}
{"id": "countdown-heldout-001358", "source": "countdown", "nums": [1, 4, 14, 18], "target": 36, "question": "Using the numbers 1, 4, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(1 * 4) + (14 + 18)"}
{"id": "countdown-heldout-001359", "source": "countdown", "nums": [1, 11, 12, 22], "target": 45, "question": "Using the numbers 1, 11, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(1 * 11) + (12 + 22)"}
{"id": "countdown-heldout-001360", "source": "countdown", "nums": [2, 2, 20, 22], "target": 36, "question": "Using the numbers 2, 2, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "2 * ((2 * 20) - 22)"}
{"id": "countdown-heldout-001361", "source": "countdown", "nums": [6, 17, 18, 21], "target": 27, "question": "Using the numbers 6, 17, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(6 * 18) / (21 - 17)"}
{"id": "countdown-heldout-001362", "source": "countdown", "nums": [3, 4, 7, 14], "target": 70, "question": "Using the numbers 3, 4, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(7 * (3 * 4)) - 14"}
{"id": "countdown-heldout-001363", "source": "countdown", "nums": [2, 19, 23, 25], "target": 65, "question": "Using the numbers 2, 19, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(23 + 25) - (2 - 19)"}
{"id": "countdown-heldout-001364", "source": "countdown", "nums": [4, 6, 12, 18], "target": 15, "question": "Using the numbers 4, 6, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(4 + 6) / (12 / 18)"}
{"id": "countdown-heldout-001365", "source": "countdown", "nums": [7, 10, 19, 21], "target": 13, "question": "Using the numbers 7, 10, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(10 * (21 - 19)) - 7"}
{"id": "countdown-heldout-001366", "source": "countdown", "nums": [3, 7, 13, 16], "target": 36, "question": "Using the numbers 3, 7, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(13 * (7 - 3)) - 16"}
{"id": "countdown-heldout-001367", "source": "countdown", "nums": [7, 9, 19, 24], "target": 31, "question": "Using the numbers 7, 9, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "19 - (24 / (7 - 9))"}
{"id": "countdown-heldout-001368", "source": "countdown", "nums": [3, 6, 19, 24], "target": 51, "question": "Using the numbers 3, 6, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(3 * (6 + 19)) - 24"}
{"id": "countdown-heldout-001369", "source": "countdown", "nums": [14, 16, 17, 21], "target": 27, "question": "Using the numbers 14, 16, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(16 * (17 - 14)) - 21"}
{"id": "countdown-heldout-001370", "source": "countdown", "nums": [2, 4, 14, 23], "target": 26, "question": "Using the numbers 2, 4, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "23 - ((2 - 14) / 4)"}
{"id": "countdown-heldout-001371", "source": "countdown", "nums": [1, 3, 4, 13], "target": 91, "question": "Using the numbers 1, 3, 4, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "13 * (4 + (1 * 3))"}
{"id": "countdown-heldout-001372", "source": "countdown", "nums": [8, 12, 15, 17], "target": 72, "question": "Using the numbers 8, 12, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "12 * ((8 + 15) - 17)"}
{"id": "countdown-heldout-001373", "source": "countdown", "nums": [13, 14, 16, 24], "target": 19, "question": "Using the numbers 13, 14, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(13 + 14) + (16 - 24)"}
{"id": "countdown-heldout-001374", "source": "countdown", "nums": [4, 8, 15, 22], "target": 66, "question": "Using the numbers 4, 8, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "22 * (15 - (4 + 8))"}
{"id": "countdown-heldout-001375", "source": "countdown", "nums": [1, 6, 13, 18], "target": 35, "question": "Using the numbers 1, 6, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(1 + 6) * (18 - 13)"}
{"id": "countdown-heldout-001376", "source": "countdown", "nums": [3, 4, 7, 24], "target": 84, "question": "Using the numbers 3, 4, 7, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "7 * (24 - (3 * 4))"}
{"id": "countdown-heldout-001377", "source": "countdown", "nums": [19, 22, 23, 25], "target": 34, "question": "Using the numbers 19, 22, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(19 * (25 - 22)) - 23"}
{"id": "countdown-heldout-001378", "source": "countdown", "nums": [3, 4, 6, 18], "target": 26, "question": "Using the numbers 3, 4, 6, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "18 + (6 / (3 / 4))"}
{"id": "countdown-heldout-001379", "source": "countdown", "nums": [5, 9, 12, 19], "target": 42, "question": "Using the numbers 5, 9, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(5 - 19) * (9 - 12)"}
{"id": "countdown-heldout-001380", "source": "countdown", "nums": [15, 17, 21, 25], "target": 44, "question": "Using the numbers 15, 17, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(15 - 17) + (21 + 25)"}
{"id": "countdown-heldout-001381", "source": "countdown", "nums": [2, 3, 17, 25], "target": 10, "question": "Using the numbers 2, 3, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "2 * (25 - (3 + 17))"}
{"id": "countdown-heldout-001382", "source": "countdown", "nums": [20, 21, 21, 22], "target": 22, "question": "Using the numbers 20, 21, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "22 + (20 * (21 - 21))"}
{"id": "countdown-heldout-001383", "source": "countdown", "nums": [2, 4, 5, 20], "target": 70, "question": "Using the numbers 2, 4, 5, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "5 * (20 - (2 + 4))"}
{"id": "countdown-heldout-001384", "source": "countdown", "nums": [3, 6, 7, 15], "target": 51, "question": "Using the numbers 3, 6, 7, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "3 - (6 * (7 - 15))"}
{"id": "countdown-heldout-001385", "source": "countdown", "nums": [5, 8, 13, 15], "target": 94, "question": "Using the numbers 5, 8, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "(5 - 15) + (8 * 13)"}
{"id": "countdown-heldout-001386", "source": "countdown", "nums": [3, 5, 9, 12], "target": 67, "question": "Using the numbers 3, 5, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(12 * (9 - 3)) - 5"}
{"id": "countdown-heldout-001387", "source": "countdown", "nums": [3, 5, 20, 25], "target": 37, "question": "Using the numbers 3, 5, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(20 + 25) - (3 + 5)"}
{"id": "countdown-heldout-001388", "source": "countdown", "nums": [3, 4, 11, 17], "target": 66, "question": "Using the numbers 3, 4, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(3 * 17) + (4 + 11)"}
{"id": "countdown-heldout-001389", "source": "countdown", "nums": [9, 15, 21, 24], "target": 16, "question": "Using the numbers 9, 15, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(21 - 15) / (9 / 24)"}
{"id": "countdown-heldout-001390", "source": "countdown", "nums": [10, 12, 21, 25], "target": 71, "question": "Using the numbers 10, 12, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "21 - (25 * (10 - 12))"}
{"id": "countdown-heldout-001391", "source": "countdown", "nums": [5, 8, 12, 21], "target": 75, "question": "Using the numbers 5, 8, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "12 - (21 * (5 - 8))"}
{"id": "countdown-heldout-001392", "source": "countdown", "nums": [3, 15, 19, 20], "target": 42, "question": "Using the numbers 3, 15, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "3 * ((15 + 19) - 20)"}
{"id": "countdown-heldout-001393", "source": "countdown", "nums": [4, 7, 13, 21], "target": 25, "question": "Using the numbers 4, 7, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "13 + (21 * (4 / 7))"}
{"id": "countdown-heldout-001394", "source": "countdown", "nums": [1, 3, 6, 20], "target": 86, "question": "Using the numbers 1, 3, 6, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "6 + (20 * (1 + 3))"}
{"id": "countdown-heldout-001395", "source": "countdown", "nums": [2, 11, 13, 25], "target": 48, "question": "Using the numbers 2, 11, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 * 25) + (11 - 13)"}
{"id": "countdown-heldout-001396", "source": "countdown", "nums": [3, 7, 22, 24], "target": 35, "question": "Using the numbers 3, 7, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "7 * (24 + (3 - 22))"}
{"id": "countdown-heldout-001397", "source": "countdown", "nums": [5, 6, 10, 20], "target": 60, "question": "Using the numbers 5, 6, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(5 * 6) + (10 + 20)"}
{"id": "countdown-heldout-001398", "source": "countdown", "nums": [2, 5, 9, 17], "target": 85, "question": "Using the numbers 2, 5, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "17 / (2 - (9 / 5))"}
{"id": "countdown-heldout-001399", "source": "countdown", "nums": [7, 11, 18, 19], "target": 66, "question": "Using the numbers 7, 11, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "11 * ((7 + 18) - 19)"}
{"id": "countdown-heldout-001400", "source": "countdown", "nums": [7, 8, 16, 24], "target": 27, "question": "Using the numbers 7, 8, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(16 - 7) / (8 / 24)"}
{"id": "countdown-heldout-001401", "source": "countdown", "nums": [10, 11, 21, 25], "target": 29, "question": "Using the numbers 10, 11, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(10 * (25 - 21)) - 11"}
{"id": "countdown-heldout-001402", "source": "countdown", "nums": [4, 16, 18, 24], "target": 13, "question": "Using the numbers 4, 16, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "16 - ((4 * 18) / 24)"}
{"id": "countdown-heldout-001403", "source": "countdown", "nums": [5, 15, 18, 23], "target": 58, "question": "Using the numbers 5, 15, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "18 - (5 * (15 - 23))"}
{"id": "countdown-heldout-001404", "source": "countdown", "nums": [4, 15, 15, 25], "target": 69, "question": "Using the numbers 4, 15, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "15 * (4 + (15 / 25))"}
{"id": "countdown-heldout-001405", "source": "countdown", "nums": [1, 6, 13, 17], "target": 34, "question": "Using the numbers 1, 6, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(13 - 1) / (6 / 17)"}
{"id": "countdown-heldout-001406", "source": "countdown", "nums": [3, 4, 9, 10], "target": 67, "question": "Using the numbers 3, 4, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(3 * 9) + (4 * 10)"}
{"id": "countdown-heldout-001407", "source": "countdown", "nums": [4, 7, 10, 23], "target": 73, "question": "Using the numbers 4, 7, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "4 - (23 * (7 - 10))"}
{"id": "countdown-heldout-001408", "source": "countdown", "nums": [6, 16, 16, 17], "target": 24, "question": "Using the numbers 6, 16, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(6 + 17) + (16 / 16)"}
{"id": "countdown-heldout-001409", "source": "countdown", "nums": [9, 16, 21, 23], "target": 100, "question": "Using the numbers 9, 16, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(9 * 16) - (21 + 23)"}
{"id": "countdown-heldout-001410", "source": "countdown", "nums": [2, 6, 14, 24], "target": 26, "question": "Using the numbers 2, 6, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(14 + 24) - (2 * 6)"}
{"id": "countdown-heldout-001411", "source": "countdown", "nums": [3, 4, 14, 22], "target": 11, "question": "Using the numbers 3, 4, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(3 + 4) / (14 / 22)"}
{"id": "countdown-heldout-001412", "source": "countdown", "nums": [2, 4, 17, 23], "target": 34, "question": "Using the numbers 2, 4, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(17 + 23) - (2 + 4)"}
{"id": "countdown-heldout-001413", "source": "countdown", "nums": [1, 9, 9, 16], "target": 63, "question": "Using the numbers 1, 9, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(1 * 9) * (16 - 9)"}
{"id": "countdown-heldout-001414", "source": "countdown", "nums": [3, 8, 11, 13], "target": 31, "question": "Using the numbers 3, 8, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "((8 * 13) - 11) / 3"}
{"id": "countdown-heldout-001415", "source": "countdown", "nums": [4, 6, 21, 23], "target": 83, "question": "Using the numbers 4, 6, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "23 - (4 * (6 - 21))"}
{"id": "countdown-heldout-001416", "source": "countdown", "nums": [2, 2, 18, 24], "target": 26, "question": "Using the numbers 2, 2, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(2 * (24 - 2)) - 18"}
{"id": "countdown-heldout-001417", "source": "countdown", "nums": [5, 8, 17, 19], "target": 51, "question": "Using the numbers 5, 8, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(5 + 19) / (8 / 17)"}
{"id": "countdown-heldout-001418", "source": "countdown", "nums": [1, 7, 15, 16], "target": 96, "question": "Using the numbers 1, 7, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(7 * 16) - (1 + 15)"}
{"id": "countdown-heldout-001419", "source": "countdown", "nums": [3, 6, 9, 10], "target": 29, "question": "Using the numbers 3, 6, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "9 + (10 / (3 / 6))"}
{"id": "countdown-heldout-001420", "source": "countdown", "nums": [4, 13, 15, 19], "target": 23, "question": "Using the numbers 4, 13, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "15 + ((13 + 19) / 4)"}
{"id": "countdown-heldout-001421", "source": "countdown", "nums": [4, 21, 23, 25], "target": 33, "question": "Using the numbers 4, 21, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "25 - (4 * (21 - 23))"}
{"id": "countdown-heldout-001422", "source": "countdown", "nums": [6, 15, 22, 25], "target": 18, "question": "Using the numbers 6, 15, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(6 + 15) + (22 - 25)"}
{"id": "countdown-heldout-001423", "source": "countdown", "nums": [5, 10, 12, 17], "target": 75, "question": "Using the numbers 5, 10, 12, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(5 + 10) * (17 - 12)"}
{"id": "countdown-heldout-001424", "source": "countdown", "nums": [6, 13, 14, 21], "target": 62, "question": "Using the numbers 6, 13, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "13 + (21 / (6 / 14))"}
{"id": "countdown-heldout-001425", "source": "countdown", "nums": [10, 12, 18, 20], "target": 22, "question": "Using the numbers 10, 12, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(20 * (12 - 10)) - 18"}
{"id": "countdown-heldout-001426", "source": "countdown", "nums": [4, 14, 21, 22], "target": 98, "question": "Using the numbers 4, 14, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "21 + (22 / (4 / 14))"}
{"id": "countdown-heldout-001427", "source": "countdown", "nums": [6, 9, 10, 19], "target": 87, "question": "Using the numbers 6, 9, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(9 - 6) * (10 + 19)"}
{"id": "countdown-heldout-001428", "source": "countdown", "nums": [4, 7, 13, 23], "target": 98, "question": "Using the numbers 4, 7, 13, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "7 * (23 + (4 - 13))"}
{"id": "countdown-heldout-001429", "source": "countdown", "nums": [2, 3, 9, 10], "target": 63, "question": "Using the numbers 2, 3, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "3 * (10 + (2 + 9))"}
{"id": "countdown-heldout-001430", "source": "countdown", "nums": [2, 7, 8, 11], "target": 83, "question": "Using the numbers 2, 7, 8, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "11 + (8 * (2 + 7))"}
{"id": "countdown-heldout-001431", "source": "countdown", "nums": [7, 11, 20, 20], "target": 77, "question": "Using the numbers 7, 11, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(7 * 11) + (20 - 20)"}
{"id": "countdown-heldout-001432", "source": "countdown", "nums": [17, 20, 24, 25], "target": 37, "question": "Using the numbers 17, 20, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(17 + 20) * (25 - 24)"}
{"id": "countdown-heldout-001433", "source": "countdown", "nums": [3, 7, 9, 21], "target": 36, "question": "Using the numbers 3, 7, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(3 + 9) / (7 / 21)"}
{"id": "countdown-heldout-001434", "source": "countdown", "nums": [5, 6, 10, 16], "target": 12, "question": "Using the numbers 5, 6, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(10 / 5) - (6 - 16)"}
{"id": "countdown-heldout-001435", "source": "countdown", "nums": [2, 6, 9, 18], "target": 23, "question": "Using the numbers 2, 6, 9, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(2 - 6) + (9 + 18)"}
{"id": "countdown-heldout-001436", "source": "countdown", "nums": [1, 3, 8, 19], "target": 50, "question": "Using the numbers 1, 3, 8, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(1 - 8) + (3 * 19)"}
{"id": "countdown-heldout-001437", "source": "countdown", "nums": [10, 12, 22, 23], "target": 43, "question": "Using the numbers 10, 12, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(10 - 12) + (22 + 23)"}
{"id": "countdown-heldout-001438", "source": "countdown", "nums": [5, 5, 17, 20], "target": 63, "question": "Using the numbers 5, 5, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(20 / (5 / 17)) - 5"}
{"id": "countdown-heldout-001439", "source": "countdown", "nums": [3, 4, 13, 23], "target": 24, "question": "Using the numbers 3, 4, 13, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(13 + 23) - (3 * 4)"}
{"id": "countdown-heldout-001440", "source": "countdown", "nums": [6, 7, 9, 16], "target": 35, "question": "Using the numbers 6, 7, 9, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(6 * 7) + (9 - 16)"}
{"id": "countdown-heldout-001441", "source": "countdown", "nums": [18, 20, 23, 25], "target": 76, "question": "Using the numbers 18, 20, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(18 + 20) * (25 - 23)"}
{"id": "countdown-heldout-001442", "source": "countdown", "nums": [5, 7, 12, 13], "target": 10, "question": "Using the numbers 5, 7, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(5 * 7) - (12 + 13)"}
{"id": "countdown-heldout-001443", "source": "countdown", "nums": [10, 17, 23, 24], "target": 14, "question": "Using the numbers 10, 17, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "10 - (24 / (17 - 23))"}
{"id": "countdown-heldout-001444", "source": "countdown", "nums": [10, 11, 20, 22], "target": 12, "question": "Using the numbers 10, 11, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "(22 / 11) - (10 - 20)"}
{"id": "countdown-heldout-001445", "source": "countdown", "nums": [2, 8, 9, 11], "target": 22, "question": "Using the numbers 2, 8, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(2 * 11) * (9 - 8)"}
{"id": "countdown-heldout-001446", "source": "countdown", "nums": [1, 2, 2, 20], "target": 18, "question": "Using the numbers 1, 2, 2, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(1 - 2) * (2 - 20)"}
{"id": "countdown-heldout-001447", "source": "countdown", "nums": [4, 7, 8, 9], "target": 37, "question": "Using the numbers 4, 7, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "9 - (7 * (4 - 8))"}
{"id": "countdown-heldout-001448", "source": "countdown", "nums": [5, 10, 15, 16], "target": 33, "question": "Using the numbers 5, 10, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(10 / 5) + (15 + 16)"}
{"id": "countdown-heldout-001449", "source": "countdown", "nums": [4, 12, 20, 20], "target": 68, "question": "Using the numbers 4, 12, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "20 * (4 - (12 / 20))"}
{"id": "countdown-heldout-001450", "source": "countdown", "nums": [1, 4, 8, 17], "target": 99, "question": "Using the numbers 1, 4, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(4 * (8 + 17)) - 1"}
{"id": "countdown-heldout-001451", "source": "countdown", "nums": [9, 11, 12, 13], "target": 100, "question": "Using the numbers 9, 11, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(9 * 11) - (12 - 13)"}
{"id": "countdown-heldout-001452", "source": "countdown", "nums": [9, 12, 13, 19], "target": 11, "question": "Using the numbers 9, 12, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(13 + 19) - (9 + 12)"}
{"id": "countdown-heldout-001453", "source": "countdown", "nums": [3, 5, 8, 24], "target": 31, "question": "Using the numbers 3, 5, 8, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(3 * 5) - (8 - 24)"}
{"id": "countdown-heldout-001454", "source": "countdown", "nums": [10, 13, 16, 24], "target": 82, "question": "Using the numbers 10, 13, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "10 - (24 * (13 - 16))"}
{"id": "countdown-heldout-001455", "source": "countdown", "nums": [5, 11, 14, 18], "target": 28, "question": "Using the numbers 5, 11, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "14 * (18 - (5 + 11))"}
{"id": "countdown-heldout-001456", "source": "countdown", "nums": [2, 3, 16, 21], "target": 15, "question": "Using the numbers 2, 3, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "21 - ((2 + 16) / 3)"}
{"id": "countdown-heldout-001457", "source": "countdown", "nums": [6, 6, 8, 19], "target": 29, "question": "Using the numbers 6, 6, 8, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "6 * (8 - (19 / 6))"}
{"id": "countdown-heldout-001458", "source": "countdown", "nums": [3, 13, 14, 18], "target": 67, "question": "Using the numbers 3, 13, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(14 * (18 - 13)) - 3"}
{"id": "countdown-heldout-001459", "source": "countdown", "nums": [4, 11, 14, 24], "target": 86, "question": "Using the numbers 4, 11, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(11 * (14 - 4)) - 24"}
{"id": "countdown-heldout-001460", "source": "countdown", "nums": [1, 7, 11, 17], "target": 99, "question": "Using the numbers 1, 7, 11, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "11 * (17 - (1 + 7))"}
{"id": "countdown-heldout-001461", "source": "countdown", "nums": [8, 14, 18, 21], "target": 76, "question": "Using the numbers 8, 14, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(21 * (18 - 14)) - 8"}
{"id": "countdown-heldout-001462", "source": "countdown", "nums": [4, 14, 18, 21], "target": 45, "question": "Using the numbers 4, 14, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "18 * (4 - (21 / 14))"}
{"id": "countdown-heldout-001463", "source": "countdown", "nums": [2, 4, 11, 18], "target": 53, "question": "Using the numbers 2, 4, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(4 * 11) + (18 / 2)"}
{"id": "countdown-heldout-001464", "source": "countdown", "nums": [3, 6, 10, 12], "target": 19, "question": "Using the numbers 3, 6, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(3 - 6) + (10 + 12)"}
{"id": "countdown-heldout-001465", "source": "countdown", "nums": [5, 12, 14, 24], "target": 14, "question": "Using the numbers 5, 12, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "24 + (5 * (12 - 14))"}
{"id": "countdown-heldout-001466", "source": "countdown", "nums": [12, 15, 19, 20], "target": 35, "question": "Using the numbers 12, 15, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "19 + (20 * (12 / 15))"}
{"id": "countdown-heldout-001467", "source": "countdown", "nums": [3, 3, 4, 23], "target": 23, "question": "Using the numbers 3, 3, 4, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "23 + (4 * (3 - 3))"}
{"id": "countdown-heldout-001468", "source": "countdown", "nums": [1, 5, 15, 17], "target": 11, "question": "Using the numbers 1, 5, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "1 - (5 * (15 - 17))"}
{"id": "countdown-heldout-001469", "source": "countdown", "nums": [11, 21, 23, 23], "target": 33, "question": "Using the numbers 11, 21, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(11 + 21) + (23 / 23)"}
{"id": "countdown-heldout-001470", "source": "countdown", "nums": [7, 9, 14, 16], "target": 95, "question": "Using the numbers 7, 9, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "14 - (9 * (7 - 16))"}
{"id": "countdown-heldout-001471", "source": "countdown", "nums": [5, 7, 10, 20], "target": 49, "question": "Using the numbers 5, 7, 10, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "7 * (5 + (20 / 10))"}
{"id": "countdown-heldout-001472", "source": "countdown", "nums": [3, 6, 10, 16], "target": 39, "question": "Using the numbers 3, 6, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "3 - (6 * (10 - 16))"}
{"id": "countdown-heldout-001473", "source": "countdown", "nums": [3, 5, 6, 18], "target": 96, "question": "Using the numbers 3, 5, 6, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(3 + 5) * (18 - 6)"}
{"id": "countdown-heldout-001474", "source": "countdown", "nums": [4, 12, 16, 23], "target": 42, "question": "Using the numbers 4, 12, 16, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(12 / 4) + (16 + 23)"}
{"id": "countdown-heldout-001475", "source": "countdown", "nums": [1, 3, 6, 22], "target": 84, "question": "Using the numbers 1, 3, 6, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(1 * 3) * (6 + 22)"}
{"id": "countdown-heldout-001476", "source": "countdown", "nums": [16, 17, 18, 22], "target": 91, "question": "Using the numbers 16, 17, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(18 * (22 - 16)) - 17"}
{"id": "countdown-heldout-001477", "source": "countdown", "nums": [2, 6, 13, 18], "target": 23, "question": "Using the numbers 2, 6, 13, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(13 + 18) - (2 + 6)"}
{"id": "countdown-heldout-001478", "source": "countdown", "nums": [3, 14, 21, 24], "target": 90, "question": "Using the numbers 3, 14, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "((14 * 21) - 24) / 3"}
{"id": "countdown-heldout-001479", "source": "countdown", "nums": [4, 6, 12, 23], "target": 13, "question": "Using the numbers 4, 6, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "23 - (12 + (4 - 6))"}
{"id": "countdown-heldout-001480", "source": "countdown", "nums": [1, 5, 16, 20], "target": 76, "question": "Using the numbers 1, 5, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "(16 * (1 + 5)) - 20"}
{"id": "countdown-heldout-001481", "source": "countdown", "nums": [13, 17, 21, 22], "target": 30, "question": "Using the numbers 13, 17, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(13 + 17) * (22 - 21)"}
{"id": "countdown-heldout-001482", "source": "countdown", "nums": [6, 17, 21, 22], "target": 85, "question": "Using the numbers 6, 17, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "17 * ((6 + 21) - 22)"}
{"id": "countdown-heldout-001483", "source": "countdown", "nums": [5, 8, 14, 24], "target": 66, "question": "Using the numbers 5, 8, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "24 - (14 * (5 - 8))"}
{"id": "countdown-heldout-001484", "source": "countdown", "nums": [4, 16, 21, 22], "target": 48, "question": "Using the numbers 4, 16, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "16 * ((4 + 21) - 22)"}
{"id": "countdown-heldout-001485", "source": "countdown", "nums": [5, 14, 20, 22], "target": 51, "question": "Using the numbers 5, 14, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(20 + 22) - (5 - 14)"}
{"id": "countdown-heldout-001486", "source": "countdown", "nums": [4, 6, 17, 22], "target": 95, "question": "Using the numbers 4, 6, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(4 * (6 + 22)) - 17"}
{"id": "countdown-heldout-001487", "source": "countdown", "nums": [3, 7, 18, 18], "target": 81, "question": "Using the numbers 3, 7, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(18 * 18) / (7 - 3)"}
{"id": "countdown-heldout-001488", "source": "countdown", "nums": [2, 6, 8, 11], "target": 61, "question": "Using the numbers 2, 6, 8, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(2 + 11) + (6 * 8)"}
{"id": "countdown-heldout-001489", "source": "countdown", "nums": [1, 5, 12, 23], "target": 32, "question": "Using the numbers 1, 5, 12, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(5 * (12 - 1)) - 23"}
{"id": "countdown-heldout-001490", "source": "countdown", "nums": [4, 6, 18, 19], "target": 25, "question": "Using the numbers 4, 6, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(4 * 6) - (18 - 19)"}
{"id": "countdown-heldout-001491", "source": "countdown", "nums": [3, 7, 7, 12], "target": 77, "question": "Using the numbers 3, 7, 7, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "7 * (7 + (12 / 3))"}
{"id": "countdown-heldout-001492", "source": "countdown", "nums": [3, 17, 17, 22], "target": 25, "question": "Using the numbers 3, 17, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(3 + 17) - (17 - 22)"}
{"id": "countdown-heldout-001493", "source": "countdown", "nums": [2, 3, 7, 9], "target": 98, "question": "Using the numbers 2, 3, 7, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "7 * (9 + (2 + 3))"}
{"id": "countdown-heldout-001494", "source": "countdown", "nums": [3, 5, 15, 18], "target": 85, "question": "Using the numbers 3, 5, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(18 / (3 / 15)) - 5"}
{"id": "countdown-heldout-001495", "source": "countdown", "nums": [6, 10, 15, 19], "target": 64, "question": "Using the numbers 6, 10, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(6 + 10) * (19 - 15)"}
{"id": "countdown-heldout-001496", "source": "countdown", "nums": [3, 6, 14, 22], "target": 11, "question": "Using the numbers 3, 6, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "22 - (14 + (3 - 6))"}
{"id": "countdown-heldout-001497", "source": "countdown", "nums": [8, 13, 20, 23], "target": 40, "question": "Using the numbers 8, 13, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "20 * (23 - (8 + 13))"}
{"id": "countdown-heldout-001498", "source": "countdown", "nums": [7, 13, 14, 16], "target": 68, "question": "Using the numbers 7, 13, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(14 * (13 - 7)) - 16"}
{"id": "countdown-heldout-001499", "source": "countdown", "nums": [2, 8, 16, 18], "target": 82, "question": "Using the numbers 2, 8, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "18 + (16 / (2 / 8))"}
{"id": "countdown-heldout-001500", "source": "countdown", "nums": [2, 3, 14, 15], "target": 35, "question": "Using the numbers 2, 3, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(2 * 3) + (14 + 15)"}
{"id": "countdown-heldout-001501", "source": "countdown", "nums": [6, 11, 16, 22], "target": 13, "question": "Using the numbers 6, 11, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "16 - ((6 * 11) / 22)"}
{"id": "countdown-heldout-001502", "source": "countdown", "nums": [7, 9, 14, 20], "target": 58, "question": "Using the numbers 7, 9, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(9 + 20) / (7 / 14)"}
{"id": "countdown-heldout-001503", "source": "countdown", "nums": [2, 3, 7, 14], "target": 27, "question": "Using the numbers 2, 3, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(2 * 3) + (7 + 14)"}
{"id": "countdown-heldout-001504", "source": "countdown", "nums": [2, 3, 6, 10], "target": 80, "question": "Using the numbers 2, 3, 6, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(2 + 3) * (6 + 10)"}
{"id": "countdown-heldout-001505", "source": "countdown", "nums": [8, 9, 19, 21], "target": 41, "question": "Using the numbers 8, 9, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(19 + 21) - (8 - 9)"}
{"id": "countdown-heldout-001506", "source": "countdown", "nums": [10, 16, 19, 20], "target": 11, "question": "Using the numbers 10, 16, 19, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "19 - ((10 * 16) / 20)"}
{"id": "countdown-heldout-001507", "source": "countdown", "nums": [1, 6, 13, 14], "target": 51, "question": "Using the numbers 1, 6, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(13 * (6 - 1)) - 14"}
{"id": "countdown-heldout-001508", "source": "countdown", "nums": [3, 12, 16, 16], "target": 47, "question": "Using the numbers 3, 12, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(3 + 12) + (16 + 16)"}
{"id": "countdown-heldout-001509", "source": "countdown", "nums": [11, 11, 16, 20], "target": 75, "question": "Using the numbers 11, 11, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "20 - (11 * (11 - 16))"}
{"id": "countdown-heldout-001510", "source": "countdown", "nums": [8, 14, 20, 25], "target": 95, "question": "Using the numbers 8, 14, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(20 * (14 - 8)) - 25"}
{"id": "countdown-heldout-001511", "source": "countdown", "nums": [2, 6, 11, 15], "target": 65, "question": "Using the numbers 2, 6, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(2 - 15) * (6 - 11)"}
{"id": "countdown-heldout-001512", "source": "countdown", "nums": [5, 19, 20, 20], "target": 96, "question": "Using the numbers 5, 19, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(5 * 19) + (20 / 20)"}
{"id": "countdown-heldout-001513", "source": "countdown", "nums": [7, 15, 21, 21], "target": 90, "question": "Using the numbers 7, 15, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(21 + 21) / (7 / 15)"}
{"id": "countdown-heldout-001514", "source": "countdown", "nums": [10, 19, 22, 23], "target": 30, "question": "Using the numbers 10, 19, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(10 + 19) - (22 - 23)"}
{"id": "countdown-heldout-001515", "source": "countdown", "nums": [5, 5, 20, 25], "target": 26, "question": "Using the numbers 5, 5, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(5 + 25) - (20 / 5)"}
{"id": "countdown-heldout-001516", "source": "countdown", "nums": [3, 13, 23, 23], "target": 30, "question": "Using the numbers 3, 13, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(23 + 23) - (3 + 13)"}
{"id": "countdown-heldout-001517", "source": "countdown", "nums": [3, 3, 9, 17], "target": 75, "question": "Using the numbers 3, 3, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(3 * (9 + 17)) - 3"}
{"id": "countdown-heldout-001518", "source": "countdown", "nums": [3, 6, 9, 12], "target": 50, "question": "Using the numbers 3, 6, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(6 * 9) - (12 / 3)"}
{"id": "countdown-heldout-001519", "source": "countdown", "nums": [4, 7, 9, 10], "target": 51, "question": "Using the numbers 4, 7, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "9 - (7 * (4 - 10))"}
{"id": "countdown-heldout-001520", "source": "countdown", "nums": [3, 11, 14, 23], "target": 72, "question": "Using the numbers 3, 11, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(3 - 11) * (14 - 23)"}
{"id": "countdown-heldout-001521", "source": "countdown", "nums": [5, 13, 20, 22], "target": 21, "question": "Using the numbers 5, 13, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(13 * (22 - 20)) - 5"}
{"id": "countdown-heldout-001522", "source": "countdown", "nums": [7, 19, 20, 22], "target": 99, "question": "Using the numbers 7, 19, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(7 * 20) - (19 + 22)"}
{"id": "countdown-heldout-001523", "source": "countdown", "nums": [2, 6, 7, 14], "target": 72, "question": "Using the numbers 2, 6, 7, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(2 + 7) * (14 - 6)"}
{"id": "countdown-heldout-001524", "source": "countdown", "nums": [3, 5, 14, 24], "target": 23, "question": "Using the numbers 3, 5, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(14 + 24) - (3 * 5)"}
{"id": "countdown-heldout-001525", "source": "countdown", "nums": [6, 15, 20, 23], "target": 52, "question": "Using the numbers 6, 15, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(20 + 23) - (6 - 15)"}
{"id": "countdown-heldout-001526", "source": "countdown", "nums": [7, 11, 13, 22], "target": 58, "question": "Using the numbers 7, 11, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(7 * 13) - (11 + 22)"}
{"id": "countdown-heldout-001527", "source": "countdown", "nums": [4, 5, 15, 25], "target": 13, "question": "Using the numbers 4, 5, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "25 - (15 * (4 / 5))"}
{"id": "countdown-heldout-001528", "source": "countdown", "nums": [1, 3, 17, 22], "target": 86, "question": "Using the numbers 1, 3, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "17 + (3 * (1 + 22))"}
{"id": "countdown-heldout-001529", "source": "countdown", "nums": [11, 14, 19, 25], "target": 87, "question": "Using the numbers 11, 14, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 87.", "answer": "(14 * (19 - 11)) - 25"}
{"id": "countdown-heldout-001530", "source": "countdown", "nums": [2, 6, 6, 17], "target": 45, "question": "Using the numbers 2, 6, 6, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(17 / (2 / 6)) - 6"}
{"id": "countdown-heldout-001531", "source": "countdown", "nums": [6, 10, 20, 24], "target": 84, "question": "Using the numbers 6, 10, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "24 - (6 * (10 - 20))"}
{"id": "countdown-heldout-001532", "source": "countdown", "nums": [1, 6, 7, 15], "target": 17, "question": "Using the numbers 1, 6, 7, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(1 - 6) + (7 + 15)"}
{"id": "countdown-heldout-001533", "source": "countdown", "nums": [2, 10, 16, 21], "target": 57, "question": "Using the numbers 2, 10, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(2 * 10) + (16 + 21)"}
{"id": "countdown-heldout-001534", "source": "countdown", "nums": [8, 12, 16, 18], "target": 56, "question": "Using the numbers 8, 12, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(18 * (12 - 8)) - 16"}
{"id": "countdown-heldout-001535", "source": "countdown", "nums": [6, 12, 14, 19], "target": 65, "question": "Using the numbers 6, 12, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(14 * (12 - 6)) - 19"}
{"id": "countdown-heldout-001536", "source": "countdown", "nums": [4, 14, 18, 19], "target": 67, "question": "Using the numbers 4, 14, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(4 * 18) + (14 - 19)"}
{"id": "countdown-heldout-001537", "source": "countdown", "nums": [1, 5, 7, 15], "target": 99, "question": "Using the numbers 1, 5, 7, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(7 * 15) - (1 + 5)"}
{"id": "countdown-heldout-001538", "source": "countdown", "nums": [3, 8, 9, 11], "target": 30, "question": "Using the numbers 3, 8, 9, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(3 * 9) - (8 - 11)"}
{"id": "countdown-heldout-001539", "source": "countdown", "nums": [9, 13, 16, 17], "target": 100, "question": "Using the numbers 9, 13, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(9 + 16) * (17 - 13)"}
{"id": "countdown-heldout-001540", "source": "countdown", "nums": [9, 16, 22, 24], "target": 50, "question": "Using the numbers 9, 16, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(9 + 16) * (24 - 22)"}
{"id": "countdown-heldout-001541", "source": "countdown", "nums": [7, 8, 9, 22], "target": 69, "question": "Using the numbers 7, 8, 9, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(7 * 8) - (9 - 22)"}
{"id": "countdown-heldout-001542", "source": "countdown", "nums": [10, 19, 21, 24], "target": 56, "question": "Using the numbers 10, 19, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(21 * 24) / (19 - 10)"}
{"id": "countdown-heldout-001543", "source": "countdown", "nums": [3, 4, 15, 20], "target": 13, "question": "Using the numbers 3, 4, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(3 + 15) - (20 / 4)"}
{"id": "countdown-heldout-001544", "source": "countdown", "nums": [1, 3, 10, 16], "target": 78, "question": "Using the numbers 1, 3, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(1 * 3) * (10 + 16)"}
{"id": "countdown-heldout-001545", "source": "countdown", "nums": [12, 13, 16, 21], "target": 36, "question": "Using the numbers 12, 13, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(12 - 13) + (16 + 21)"}
{"id": "countdown-heldout-001546", "source": "countdown", "nums": [5, 10, 14, 25], "target": 32, "question": "Using the numbers 5, 10, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "25 + (14 * (5 / 10))"}
{"id": "countdown-heldout-001547", "source": "countdown", "nums": [3, 6, 11, 12], "target": 94, "question": "Using the numbers 3, 6, 11, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "6 * (12 + (11 / 3))"}
{"id": "countdown-heldout-001548", "source": "countdown", "nums": [9, 11, 16, 25], "target": 45, "question": "Using the numbers 9, 11, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(9 * 25) / (16 - 11)"}
{"id": "countdown-heldout-001549", "source": "countdown", "nums": [6, 10, 17, 20], "target": 51, "question": "Using the numbers 6, 10, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(6 * 10) * (17 / 20)"}
{"id": "countdown-heldout-001550", "source": "countdown", "nums": [2, 8, 9, 21], "target": 52, "question": "Using the numbers 2, 8, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "(2 * (9 + 21)) - 8"}
{"id": "countdown-heldout-001551", "source": "countdown", "nums": [2, 5, 19, 24], "target": 81, "question": "Using the numbers 2, 5, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "24 - (19 * (2 - 5))"}
{"id": "countdown-heldout-001552", "source": "countdown", "nums": [4, 8, 9, 23], "target": 53, "question": "Using the numbers 4, 8, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(4 - 23) + (8 * 9)"}
{"id": "countdown-heldout-001553", "source": "countdown", "nums": [5, 5, 8, 12], "target": 52, "question": "Using the numbers 5, 5, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "5 * (12 - (8 / 5))"}
{"id": "countdown-heldout-001554", "source": "countdown", "nums": [2, 6, 12, 21], "target": 18, "question": "Using the numbers 2, 6, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "21 + (12 / (2 - 6))"}
{"id": "countdown-heldout-001555", "source": "countdown", "nums": [3, 4, 9, 21], "target": 69, "question": "Using the numbers 3, 4, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "21 + (4 * (3 + 9))"}
{"id": "countdown-heldout-001556", "source": "countdown", "nums": [2, 8, 12, 25], "target": 75, "question": "Using the numbers 2, 8, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(2 / 8) * (12 * 25)"}
{"id": "countdown-heldout-001557", "source": "countdown", "nums": [12, 15, 18, 20], "target": 21, "question": "Using the numbers 12, 15, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "15 - (12 / (18 - 20))"}
{"id": "countdown-heldout-001558", "source": "countdown", "nums": [13, 15, 17, 17], "target": 17, "question": "Using the numbers 13, 15, 17, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(17 + 17) / (15 - 13)"}
{"id": "countdown-heldout-001559", "source": "countdown", "nums": [3, 8, 17, 18], "target": 16, "question": "Using the numbers 3, 8, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "8 * ((3 + 17) - 18)"}
{"id": "countdown-heldout-001560", "source": "countdown", "nums": [2, 7, 14, 25], "target": 99, "question": "Using the numbers 2, 7, 14, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(2 + 7) * (25 - 14)"}
{"id": "countdown-heldout-001561", "source": "countdown", "nums": [3, 5, 16, 22], "target": 45, "question": "Using the numbers 3, 5, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "5 * (22 + (3 - 16))"}
{"id": "countdown-heldout-001562", "source": "countdown", "nums": [5, 6, 9, 23], "target": 47, "question": "Using the numbers 5, 6, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "23 - (6 * (5 - 9))"}
{"id": "countdown-heldout-001563", "source": "countdown", "nums": [8, 14, 23, 25], "target": 47, "question": "Using the numbers 8, 14, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(8 * (23 - 14)) - 25"}
{"id": "countdown-heldout-001564", "source": "countdown", "nums": [2, 8, 11, 20], "target": 37, "question": "Using the numbers 2, 8, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(11 + 20) - (2 - 8)"}
{"id": "countdown-heldout-001565", "source": "countdown", "nums": [4, 11, 14, 15], "target": 57, "question": "Using the numbers 4, 11, 14, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "(4 + 15) * (14 - 11)"}
{"id": "countdown-heldout-001566", "source": "countdown", "nums": [3, 8, 9, 10], "target": 59, "question": "Using the numbers 3, 8, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "9 - (10 * (3 - 8))"}
{"id": "countdown-heldout-001567", "source": "countdown", "nums": [1, 6, 10, 10], "target": 71, "question": "Using the numbers 1, 6, 10, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(1 + 10) + (6 * 10)"}
{"id": "countdown-heldout-001568", "source": "countdown", "nums": [1, 4, 15, 23], "target": 26, "question": "Using the numbers 1, 4, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "23 + (15 / (1 + 4))"}
{"id": "countdown-heldout-001569", "source": "countdown", "nums": [8, 9, 11, 19], "target": 91, "question": "Using the numbers 8, 9, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "11 - (8 * (9 - 19))"}
{"id": "countdown-heldout-001570", "source": "countdown", "nums": [4, 5, 11, 14], "target": 25, "question": "Using the numbers 4, 5, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "14 - (11 * (4 - 5))"}
{"id": "countdown-heldout-001571", "source": "countdown", "nums": [10, 11, 20, 22], "target": 33, "question": "Using the numbers 10, 11, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(22 / (10 / 20)) - 11"}
{"id": "countdown-heldout-001572", "source": "countdown", "nums": [6, 8, 9, 18], "target": 39, "question": "Using the numbers 6, 8, 9, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(6 * 8) + (9 - 18)"}
{"id": "countdown-heldout-001573", "source": "countdown", "nums": [5, 9, 12, 17], "target": 39, "question": "Using the numbers 5, 9, 12, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "((12 * 17) - 9) / 5"}
{"id": "countdown-heldout-001574", "source": "countdown", "nums": [9, 10, 16, 25], "target": 22, "question": "Using the numbers 9, 10, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(16 + 25) - (9 + 10)"}
{"id": "countdown-heldout-001575", "source": "countdown", "nums": [5, 6, 8, 10], "target": 91, "question": "Using the numbers 5, 6, 8, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(5 + 6) + (8 * 10)"}
{"id": "countdown-heldout-001576", "source": "countdown", "nums": [4, 8, 11, 25], "target": 68, "question": "Using the numbers 4, 8, 11, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(4 * 8) + (11 + 25)"}
{"id": "countdown-heldout-001577", "source": "countdown", "nums": [2, 10, 10, 22], "target": 60, "question": "Using the numbers 2, 10, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(22 - 10) / (2 / 10)"}
{"id": "countdown-heldout-001578", "source": "countdown", "nums": [13, 16, 18, 25], "target": 26, "question": "Using the numbers 13, 16, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(13 * 18) / (25 - 16)"}
{"id": "countdown-heldout-001579", "source": "countdown", "nums": [2, 18, 23, 24], "target": 14, "question": "Using the numbers 2, 18, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "24 + (2 * (18 - 23))"}
{"id": "countdown-heldout-001580", "source": "countdown", "nums": [3, 4, 5, 16], "target": 66, "question": "Using the numbers 3, 4, 5, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(4 * 16) - (3 - 5)"}
{"id": "countdown-heldout-001581", "source": "countdown", "nums": [3, 5, 15, 17], "target": 80, "question": "Using the numbers 3, 5, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(17 / (3 / 15)) - 5"}
{"id": "countdown-heldout-001582", "source": "countdown", "nums": [6, 6, 8, 12], "target": 27, "question": "Using the numbers 6, 6, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "6 * (6 - (12 / 8))"}
{"id": "countdown-heldout-001583", "source": "countdown", "nums": [3, 3, 12, 25], "target": 99, "question": "Using the numbers 3, 3, 12, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "((12 * 25) - 3) / 3"}
{"id": "countdown-heldout-001584", "source": "countdown", "nums": [8, 9, 16, 16], "target": 36, "question": "Using the numbers 8, 9, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(16 + 16) / (8 / 9)"}
{"id": "countdown-heldout-001585", "source": "countdown", "nums": [2, 7, 13, 14], "target": 36, "question": "Using the numbers 2, 7, 13, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(2 + 7) + (13 + 14)"}
{"id": "countdown-heldout-001586", "source": "countdown", "nums": [7, 8, 11, 22], "target": 44, "question": "Using the numbers 7, 8, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(8 * 22) / (11 - 7)"}
{"id": "countdown-heldout-001587", "source": "countdown", "nums": [5, 5, 5, 16], "target": 81, "question": "Using the numbers 5, 5, 5, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(5 / 5) + (5 * 16)"}
{"id": "countdown-heldout-001588", "source": "countdown", "nums": [3, 18, 19, 22], "target": 31, "question": "Using the numbers 3, 18, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "19 - (3 * (18 - 22))"}
{"id": "countdown-heldout-001589", "source": "countdown", "nums": [5, 6, 10, 11], "target": 86, "question": "Using the numbers 5, 6, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(6 * (5 + 11)) - 10"}
{"id": "countdown-heldout-001590", "source": "countdown", "nums": [3, 3, 4, 15], "target": 13, "question": "Using the numbers 3, 3, 4, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(4 + 15) - (3 + 3)"}
{"id": "countdown-heldout-001591", "source": "countdown", "nums": [1, 1, 11, 22], "target": 11, "question": "Using the numbers 1, 1, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(1 - 1) - (11 - 22)"}
{"id": "countdown-heldout-001592", "source": "countdown", "nums": [10, 19, 20, 25], "target": 45, "question": "Using the numbers 10, 19, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(10 - 19) * (20 - 25)"}
{"id": "countdown-heldout-001593", "source": "countdown", "nums": [9, 12, 13, 22], "target": 61, "question": "Using the numbers 9, 12, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "22 - (13 * (9 - 12))"}
{"id": "countdown-heldout-001594", "source": "countdown", "nums": [4, 4, 15, 16], "target": 16, "question": "Using the numbers 4, 4, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "16 + (15 * (4 - 4))"}
{"id": "countdown-heldout-001595", "source": "countdown", "nums": [6, 11, 23, 25], "target": 53, "question": "Using the numbers 6, 11, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(23 + 25) - (6 - 11)"}
{"id": "countdown-heldout-001596", "source": "countdown", "nums": [2, 10, 13, 22], "target": 67, "question": "Using the numbers 2, 10, 13, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(2 * 22) + (10 + 13)"}
{"id": "countdown-heldout-001597", "source": "countdown", "nums": [3, 9, 15, 19], "target": 61, "question": "Using the numbers 3, 9, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(3 * 9) + (15 + 19)"}
{"id": "countdown-heldout-001598", "source": "countdown", "nums": [5, 11, 16, 22], "target": 21, "question": "Using the numbers 5, 11, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "22 - (16 / (5 + 11))"}
{"id": "countdown-heldout-001599", "source": "countdown", "nums": [8, 10, 13, 21], "target": 45, "question": "Using the numbers 8, 10, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "21 - (8 * (10 - 13))"}
{"id": "countdown-heldout-001600", "source": "countdown", "nums": [5, 5, 13, 15], "target": 40, "question": "Using the numbers 5, 5, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "(5 + (13 * 15)) / 5"}
{"id": "countdown-heldout-001601", "source": "countdown", "nums": [7, 8, 11, 20], "target": 79, "question": "Using the numbers 7, 8, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 79.", "answer": "7 - (8 * (11 - 20))"}
{"id": "countdown-heldout-001602", "source": "countdown", "nums": [1, 3, 8, 15], "target": 88, "question": "Using the numbers 1, 3, 8, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "8 * (15 - (1 + 3))"}
{"id": "countdown-heldout-001603", "source": "countdown", "nums": [4, 11, 20, 25], "target": 70, "question": "Using the numbers 4, 11, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(25 - 11) / (4 / 20)"}
{"id": "countdown-heldout-001604", "source": "countdown", "nums": [2, 4, 6, 25], "target": 32, "question": "Using the numbers 2, 4, 6, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(4 + 25) + (6 / 2)"}
{"id": "countdown-heldout-001605", "source": "countdown", "nums": [6, 6, 9, 14], "target": 42, "question": "Using the numbers 6, 6, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "14 * ((6 + 6) - 9)"}
{"id": "countdown-heldout-001606", "source": "countdown", "nums": [5, 9, 16, 21], "target": 49, "question": "Using the numbers 5, 9, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(5 + 16) / (9 / 21)"}
{"id": "countdown-heldout-001607", "source": "countdown", "nums": [2, 4, 11, 21], "target": 27, "question": "Using the numbers 2, 4, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(2 * 21) - (4 + 11)"}
{"id": "countdown-heldout-001608", "source": "countdown", "nums": [10, 16, 24, 25], "target": 55, "question": "Using the numbers 10, 16, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(24 + 25) - (10 - 16)"}
{"id": "countdown-heldout-001609", "source": "countdown", "nums": [5, 9, 24, 25], "target": 100, "question": "Using the numbers 5, 9, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "25 - (5 * (9 - 24))"}
{"id": "countdown-heldout-001610", "source": "countdown", "nums": [2, 9, 13, 15], "target": 58, "question": "Using the numbers 2, 9, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(15 * (13 - 9)) - 2"}
{"id": "countdown-heldout-001611", "source": "countdown", "nums": [9, 11, 23, 24], "target": 98, "question": "Using the numbers 9, 11, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(9 * 11) + (23 - 24)"}
{"id": "countdown-heldout-001612", "source": "countdown", "nums": [2, 6, 9, 13], "target": 32, "question": "Using the numbers 2, 6, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(2 + 6) * (13 - 9)"}
{"id": "countdown-heldout-001613", "source": "countdown", "nums": [5, 6, 23, 24], "target": 58, "question": "Using the numbers 5, 6, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(5 + 6) + (23 + 24)"}
{"id": "countdown-heldout-001614", "source": "countdown", "nums": [6, 10, 11, 16], "target": 65, "question": "Using the numbers 6, 10, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(6 * 10) - (11 - 16)"}
{"id": "countdown-heldout-001615", "source": "countdown", "nums": [4, 6, 17, 22], "target": 21, "question": "Using the numbers 4, 6, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "17 - ((6 - 22) / 4)"}
{"id": "countdown-heldout-001616", "source": "countdown", "nums": [3, 10, 10, 17], "target": 73, "question": "Using the numbers 3, 10, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "3 - (10 * (10 - 17))"}
{"id": "countdown-heldout-001617", "source": "countdown", "nums": [1, 2, 7, 22], "target": 45, "question": "Using the numbers 1, 2, 7, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(1 + 2) * (22 - 7)"}
{"id": "countdown-heldout-001618", "source": "countdown", "nums": [2, 8, 8, 25], "target": 14, "question": "Using the numbers 2, 8, 8, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(8 * 8) - (2 * 25)"}
{"id": "countdown-heldout-001619", "source": "countdown", "nums": [3, 9, 16, 21], "target": 96, "question": "Using the numbers 3, 9, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "16 * ((3 * 9) - 21)"}
{"id": "countdown-heldout-001620", "source": "countdown", "nums": [3, 5, 12, 24], "target": 84, "question": "Using the numbers 3, 5, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 84.", "answer": "(5 * 24) - (3 * 12)"}
{"id": "countdown-heldout-001621", "source": "countdown", "nums": [4, 6, 8, 21], "target": 53, "question": "Using the numbers 4, 6, 8, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "(4 * 6) + (8 + 21)"}
{"id": "countdown-heldout-001622", "source": "countdown", "nums": [6, 8, 13, 24], "target": 94, "question": "Using the numbers 6, 8, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "(6 * 13) - (8 - 24)"}
{"id": "countdown-heldout-001623", "source": "countdown", "nums": [1, 4, 5, 10], "target": 10, "question": "Using the numbers 1, 4, 5, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(5 + 10) - (1 + 4)"}
{"id": "countdown-heldout-001624", "source": "countdown", "nums": [3, 4, 11, 19], "target": 51, "question": "Using the numbers 3, 4, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "19 - (4 * (3 - 11))"}
{"id": "countdown-heldout-001625", "source": "countdown", "nums": [4, 9, 18, 24], "target": 50, "question": "Using the numbers 4, 9, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(9 * (24 - 18)) - 4"}
{"id": "countdown-heldout-001626", "source": "countdown", "nums": [13, 21, 22, 23], "target": 15, "question": "Using the numbers 13, 21, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "13 + ((21 + 23) / 22)"}
{"id": "countdown-heldout-001627", "source": "countdown", "nums": [5, 6, 8, 22], "target": 30, "question": "Using the numbers 5, 6, 8, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "22 - (8 * (5 - 6))"}
{"id": "countdown-heldout-001628", "source": "countdown", "nums": [6, 13, 15, 22], "target": 97, "question": "Using the numbers 6, 13, 15, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "6 - (13 * (15 - 22))"}
{"id": "countdown-heldout-001629", "source": "countdown", "nums": [10, 13, 18, 19], "target": 44, "question": "Using the numbers 10, 13, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(13 * 18) - (10 * 19)"}
{"id": "countdown-heldout-001630", "source": "countdown", "nums": [2, 5, 9, 19], "target": 39, "question": "Using the numbers 2, 5, 9, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 * (5 + 19)) - 9"}
{"id": "countdown-heldout-001631", "source": "countdown", "nums": [12, 17, 17, 19], "target": 61, "question": "Using the numbers 12, 17, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(17 * 17) - (12 * 19)"}
{"id": "countdown-heldout-001632", "source": "countdown", "nums": [2, 11, 16, 18], "target": 37, "question": "Using the numbers 2, 11, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(11 + 18) + (16 / 2)"}
{"id": "countdown-heldout-001633", "source": "countdown", "nums": [5, 9, 13, 15], "target": 95, "question": "Using the numbers 5, 9, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(5 * (9 + 13)) - 15"}
{"id": "countdown-heldout-001634", "source": "countdown", "nums": [11, 11, 23, 25], "target": 69, "question": "Using the numbers 11, 11, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "23 * (25 - (11 + 11))"}
{"id": "countdown-heldout-001635", "source": "countdown", "nums": [4, 6, 9, 23], "target": 34, "question": "Using the numbers 4, 6, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(9 + 23) - (4 - 6)"}
{"id": "countdown-heldout-001636", "source": "countdown", "nums": [5, 13, 15, 20], "target": 60, "question": "Using the numbers 5, 13, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "20 * ((5 + 13) - 15)"}
{"id": "countdown-heldout-001637", "source": "countdown", "nums": [5, 10, 12, 22], "target": 71, "question": "Using the numbers 5, 10, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "5 * (12 + (22 / 10))"}
{"id": "countdown-heldout-001638", "source": "countdown", "nums": [5, 6, 10, 14], "target": 82, "question": "Using the numbers 5, 6, 10, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(6 * 14) - (10 / 5)"}
{"id": "countdown-heldout-001639", "source": "countdown", "nums": [5, 10, 17, 21], "target": 64, "question": "Using the numbers 5, 10, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(17 * (10 - 5)) - 21"}
{"id": "countdown-heldout-001640", "source": "countdown", "nums": [2, 13, 14, 20], "target": 66, "question": "Using the numbers 2, 13, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(2 - 13) * (14 - 20)"}
{"id": "countdown-heldout-001641", "source": "countdown", "nums": [4, 8, 9, 18], "target": 11, "question": "Using the numbers 4, 8, 9, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(8 / 4) - (9 - 18)"}
{"id": "countdown-heldout-001642", "source": "countdown", "nums": [10, 11, 11, 23], "target": 32, "question": "Using the numbers 10, 11, 11, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(10 + 23) - (11 / 11)"}
{"id": "countdown-heldout-001643", "source": "countdown", "nums": [1, 9, 23, 24], "target": 18, "question": "Using the numbers 1, 9, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "9 * (24 + (1 - 23))"}
{"id": "countdown-heldout-001644", "source": "countdown", "nums": [5, 16, 18, 25], "target": 15, "question": "Using the numbers 5, 16, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(5 + 25) / (18 - 16)"}
{"id": "countdown-heldout-001645", "source": "countdown", "nums": [7, 9, 16, 22], "target": 22, "question": "Using the numbers 7, 9, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(16 + 22) - (7 + 9)"}
{"id": "countdown-heldout-001646", "source": "countdown", "nums": [9, 10, 20, 24], "target": 24, "question": "Using the numbers 9, 10, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "24 * (20 - (9 + 10))"}
{"id": "countdown-heldout-001647", "source": "countdown", "nums": [7, 9, 22, 22], "target": 88, "question": "Using the numbers 7, 9, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 88.", "answer": "(9 - 7) * (22 + 22)"}
{"id": "countdown-heldout-001648", "source": "countdown", "nums": [4, 7, 19, 21], "target": 71, "question": "Using the numbers 4, 7, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(7 * 21) - (4 * 19)"}
{"id": "countdown-heldout-001649", "source": "countdown", "nums": [3, 12, 18, 23], "target": 17, "question": "Using the numbers 3, 12, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(18 / 3) - (12 - 23)"}
{"id": "countdown-heldout-001650", "source": "countdown", "nums": [4, 6, 8, 12], "target": 64, "question": "Using the numbers 4, 6, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(4 / 6) * (8 * 12)"}
{"id": "countdown-heldout-001651", "source": "countdown", "nums": [2, 19, 19, 19], "target": 18, "question": "Using the numbers 2, 19, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(19 / 19) - (2 - 19)"}
{"id": "countdown-heldout-001652", "source": "countdown", "nums": [10, 11, 13, 16], "target": 29, "question": "Using the numbers 10, 11, 13, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "16 - (13 * (10 - 11))"}
{"id": "countdown-heldout-001653", "source": "countdown", "nums": [1, 2, 19, 22], "target": 44, "question": "Using the numbers 1, 2, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(1 + 2) + (19 + 22)"}
{"id": "countdown-heldout-001654", "source": "countdown", "nums": [2, 11, 24, 25], "target": 62, "question": "Using the numbers 2, 11, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(2 + 11) + (24 + 25)"}
{"id": "countdown-heldout-001655", "source": "countdown", "nums": [7, 15, 19, 25], "target": 53, "question": "Using the numbers 7, 15, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "25 - (7 * (15 - 19))"}
{"id": "countdown-heldout-001656", "source": "countdown", "nums": [3, 5, 9, 9], "target": 69, "question": "Using the numbers 3, 5, 9, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "9 + (5 * (3 + 9))"}
{"id": "countdown-heldout-001657", "source": "countdown", "nums": [3, 4, 14, 22], "target": 22, "question": "Using the numbers 3, 4, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(4 * (14 - 3)) - 22"}
{"id": "countdown-heldout-001658", "source": "countdown", "nums": [17, 18, 20, 22], "target": 14, "question": "Using the numbers 17, 18, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "18 + (20 / (17 - 22))"}
{"id": "countdown-heldout-001659", "source": "countdown", "nums": [1, 5, 19, 24], "target": 90, "question": "Using the numbers 1, 5, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "(19 * (1 + 5)) - 24"}
{"id": "countdown-heldout-001660", "source": "countdown", "nums": [5, 8, 8, 9], "target": 35, "question": "Using the numbers 5, 8, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "8 - (9 * (5 - 8))"}
{"id": "countdown-heldout-001661", "source": "countdown", "nums": [2, 9, 10, 17], "target": 62, "question": "Using the numbers 2, 9, 10, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "17 + (10 / (2 / 9))"}
{"id": "countdown-heldout-001662", "source": "countdown", "nums": [1, 3, 9, 21], "target": 71, "question": "Using the numbers 1, 3, 9, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(3 * 21) - (1 - 9)"}
{"id": "countdown-heldout-001663", "source": "countdown", "nums": [9, 10, 15, 20], "target": 18, "question": "Using the numbers 9, 10, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "(9 * 10) / (20 - 15)"}
{"id": "countdown-heldout-001664", "source": "countdown", "nums": [3, 9, 12, 21], "target": 14, "question": "Using the numbers 3, 9, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "12 - ((3 - 21) / 9)"}
{"id": "countdown-heldout-001665", "source": "countdown", "nums": [5, 12, 14, 21], "target": 77, "question": "Using the numbers 5, 12, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(14 * (12 - 5)) - 21"}
{"id": "countdown-heldout-001666", "source": "countdown", "nums": [3, 6, 11, 18], "target": 10, "question": "Using the numbers 3, 6, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "18 - (11 + (3 - 6))"}
{"id": "countdown-heldout-001667", "source": "countdown", "nums": [13, 19, 24, 24], "target": 13, "question": "Using the numbers 13, 19, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "13 + (19 * (24 - 24))"}
{"id": "countdown-heldout-001668", "source": "countdown", "nums": [4, 7, 13, 20], "target": 40, "question": "Using the numbers 4, 7, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "20 * (13 - (4 + 7))"}
{"id": "countdown-heldout-001669", "source": "countdown", "nums": [6, 13, 18, 22], "target": 21, "question": "Using the numbers 6, 13, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(18 + 22) - (6 + 13)"}
{"id": "countdown-heldout-001670", "source": "countdown", "nums": [3, 11, 12, 24], "target": 28, "question": "Using the numbers 3, 11, 12, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(3 + 11) / (12 / 24)"}
{"id": "countdown-heldout-001671", "source": "countdown", "nums": [10, 18, 19, 21], "target": 13, "question": "Using the numbers 10, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "18 + (10 / (19 - 21))"}
{"id": "countdown-heldout-001672", "source": "countdown", "nums": [3, 5, 13, 15], "target": 11, "question": "Using the numbers 3, 5, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(13 * (5 - 3)) - 15"}
{"id": "countdown-heldout-001673", "source": "countdown", "nums": [3, 9, 15, 19], "target": 52, "question": "Using the numbers 3, 9, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "((9 * 19) - 15) / 3"}
{"id": "countdown-heldout-001674", "source": "countdown", "nums": [8, 10, 12, 13], "target": 16, "question": "Using the numbers 8, 10, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(10 * 12) - (8 * 13)"}
{"id": "countdown-heldout-001675", "source": "countdown", "nums": [6, 18, 20, 21], "target": 25, "question": "Using the numbers 6, 18, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(6 + 18) - (20 - 21)"}
{"id": "countdown-heldout-001676", "source": "countdown", "nums": [3, 8, 15, 20], "target": 67, "question": "Using the numbers 3, 8, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(3 * 20) - (8 - 15)"}
{"id": "countdown-heldout-001677", "source": "countdown", "nums": [5, 13, 24, 25], "target": 55, "question": "Using the numbers 5, 13, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(24 - 13) / (5 / 25)"}
{"id": "countdown-heldout-001678", "source": "countdown", "nums": [8, 10, 22, 23], "target": 82, "question": "Using the numbers 8, 10, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(8 * (23 - 10)) - 22"}
{"id": "countdown-heldout-001679", "source": "countdown", "nums": [2, 11, 11, 13], "target": 39, "question": "Using the numbers 2, 11, 11, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "13 * (2 + (11 / 11))"}
{"id": "countdown-heldout-001680", "source": "countdown", "nums": [1, 2, 4, 8], "target": 47, "question": "Using the numbers 1, 2, 4, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(8 * (2 + 4)) - 1"}
{"id": "countdown-heldout-001681", "source": "countdown", "nums": [8, 9, 10, 22], "target": 53, "question": "Using the numbers 8, 9, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "9 - (22 * (8 - 10))"}
{"id": "countdown-heldout-001682", "source": "countdown", "nums": [1, 4, 11, 18], "target": 37, "question": "Using the numbers 1, 4, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(11 * (1 + 4)) - 18"}
{"id": "countdown-heldout-001683", "source": "countdown", "nums": [12, 13, 20, 21], "target": 36, "question": "Using the numbers 12, 13, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(12 * 21) / (20 - 13)"}
{"id": "countdown-heldout-001684", "source": "countdown", "nums": [2, 11, 12, 22], "target": 30, "question": "Using the numbers 2, 11, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "12 * (2 + (11 / 22))"}
{"id": "countdown-heldout-001685", "source": "countdown", "nums": [2, 4, 23, 23], "target": 92, "question": "Using the numbers 2, 4, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(23 + 23) / (2 / 4)"}
{"id": "countdown-heldout-001686", "source": "countdown", "nums": [1, 12, 22, 24], "target": 58, "question": "Using the numbers 1, 12, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(1 * 12) + (22 + 24)"}
{"id": "countdown-heldout-001687", "source": "countdown", "nums": [7, 8, 24, 25], "target": 31, "question": "Using the numbers 7, 8, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 31.", "answer": "(25 + (8 * 24)) / 7"}
{"id": "countdown-heldout-001688", "source": "countdown", "nums": [1, 5, 14, 22], "target": 34, "question": "Using the numbers 1, 5, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(14 * (5 - 1)) - 22"}
{"id": "countdown-heldout-001689", "source": "countdown", "nums": [17, 19, 21, 25], "target": 48, "question": "Using the numbers 17, 19, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(21 + 25) - (17 - 19)"}
{"id": "countdown-heldout-001690", "source": "countdown", "nums": [1, 5, 14, 21], "target": 59, "question": "Using the numbers 1, 5, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(1 + (14 * 21)) / 5"}
{"id": "countdown-heldout-001691", "source": "countdown", "nums": [5, 9, 14, 16], "target": 23, "question": "Using the numbers 5, 9, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "5 - (9 * (14 - 16))"}
{"id": "countdown-heldout-001692", "source": "countdown", "nums": [3, 8, 15, 17], "target": 56, "question": "Using the numbers 3, 8, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(3 * 8) + (15 + 17)"}
{"id": "countdown-heldout-001693", "source": "countdown", "nums": [6, 6, 20, 24], "target": 17, "question": "Using the numbers 6, 6, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "20 + ((6 - 24) / 6)"}
{"id": "countdown-heldout-001694", "source": "countdown", "nums": [1, 2, 16, 24], "target": 42, "question": "Using the numbers 1, 2, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(1 * 2) + (16 + 24)"}
{"id": "countdown-heldout-001695", "source": "countdown", "nums": [8, 10, 13, 17], "target": 59, "question": "Using the numbers 8, 10, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "8 - (17 * (10 - 13))"}
{"id": "countdown-heldout-001696", "source": "countdown", "nums": [4, 5, 11, 20], "target": 22, "question": "Using the numbers 4, 5, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(11 + 20) - (4 + 5)"}
{"id": "countdown-heldout-001697", "source": "countdown", "nums": [7, 11, 16, 18], "target": 91, "question": "Using the numbers 7, 11, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "7 * (18 + (11 - 16))"}
{"id": "countdown-heldout-001698", "source": "countdown", "nums": [8, 11, 15, 21], "target": 39, "question": "Using the numbers 8, 11, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(15 + 21) - (8 - 11)"}
{"id": "countdown-heldout-001699", "source": "countdown", "nums": [6, 17, 18, 20], "target": 77, "question": "Using the numbers 6, 17, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "17 + (20 / (6 / 18))"}
{"id": "countdown-heldout-001700", "source": "countdown", "nums": [7, 13, 15, 18], "target": 86, "question": "Using the numbers 7, 13, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 86.", "answer": "(13 * (15 - 7)) - 18"}
{"id": "countdown-heldout-001701", "source": "countdown", "nums": [2, 5, 17, 23], "target": 66, "question": "Using the numbers 2, 5, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(17 + (5 * 23)) / 2"}
{"id": "countdown-heldout-001702", "source": "countdown", "nums": [9, 11, 15, 18], "target": 23, "question": "Using the numbers 9, 11, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(9 + 11) - (15 - 18)"}
{"id": "countdown-heldout-001703", "source": "countdown", "nums": [9, 15, 16, 21], "target": 19, "question": "Using the numbers 9, 15, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "(9 + 15) + (16 - 21)"}
{"id": "countdown-heldout-001704", "source": "countdown", "nums": [7, 8, 21, 22], "target": 55, "question": "Using the numbers 7, 8, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(7 * 8) + (21 - 22)"}
{"id": "countdown-heldout-001705", "source": "countdown", "nums": [1, 5, 6, 13], "target": 65, "question": "Using the numbers 1, 5, 6, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "13 / ((6 / 5) - 1)"}
{"id": "countdown-heldout-001706", "source": "countdown", "nums": [1, 2, 7, 15], "target": 22, "question": "Using the numbers 1, 2, 7, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "15 - (7 * (1 - 2))"}
{"id": "countdown-heldout-001707", "source": "countdown", "nums": [1, 8, 22, 24], "target": 16, "question": "Using the numbers 1, 8, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(1 * 8) * (24 - 22)"}
{"id": "countdown-heldout-001708", "source": "countdown", "nums": [3, 5, 10, 24], "target": 21, "question": "Using the numbers 3, 5, 10, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(3 * (5 + 10)) - 24"}
{"id": "countdown-heldout-001709", "source": "countdown", "nums": [6, 7, 14, 17], "target": 73, "question": "Using the numbers 6, 7, 14, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(6 * 7) + (14 + 17)"}
{"id": "countdown-heldout-001710", "source": "countdown", "nums": [4, 11, 12, 18], "target": 16, "question": "Using the numbers 4, 11, 12, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(4 * (18 - 11)) - 12"}
{"id": "countdown-heldout-001711", "source": "countdown", "nums": [2, 3, 9, 14], "target": 52, "question": "Using the numbers 2, 3, 9, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "2 * (14 + (3 + 9))"}
{"id": "countdown-heldout-001712", "source": "countdown", "nums": [5, 7, 10, 19], "target": 70, "question": "Using the numbers 5, 7, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "10 * (19 - (5 + 7))"}
{"id": "countdown-heldout-001713", "source": "countdown", "nums": [8, 9, 10, 23], "target": 45, "question": "Using the numbers 8, 9, 10, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "9 * (23 - (8 + 10))"}
{"id": "countdown-heldout-001714", "source": "countdown", "nums": [2, 5, 15, 20], "target": 21, "question": "Using the numbers 2, 5, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(2 + 15) + (20 / 5)"}
{"id": "countdown-heldout-001715", "source": "countdown", "nums": [2, 4, 9, 10], "target": 82, "question": "Using the numbers 2, 4, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(9 * 10) - (2 * 4)"}
{"id": "countdown-heldout-001716", "source": "countdown", "nums": [14, 16, 20, 22], "target": 13, "question": "Using the numbers 14, 16, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "16 - ((20 + 22) / 14)"}
{"id": "countdown-heldout-001717", "source": "countdown", "nums": [4, 5, 14, 16], "target": 83, "question": "Using the numbers 4, 5, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "(4 * 16) + (5 + 14)"}
{"id": "countdown-heldout-001718", "source": "countdown", "nums": [3, 5, 6, 14], "target": 81, "question": "Using the numbers 3, 5, 6, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "(3 + 6) * (14 - 5)"}
{"id": "countdown-heldout-001719", "source": "countdown", "nums": [2, 5, 6, 16], "target": 53, "question": "Using the numbers 2, 5, 6, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 53.", "answer": "5 + (16 / (2 / 6))"}
{"id": "countdown-heldout-001720", "source": "countdown", "nums": [13, 16, 22, 23], "target": 25, "question": "Using the numbers 13, 16, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "22 + ((16 + 23) / 13)"}
{"id": "countdown-heldout-001721", "source": "countdown", "nums": [3, 11, 25, 25], "target": 64, "question": "Using the numbers 3, 11, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(3 + 11) + (25 + 25)"}
{"id": "countdown-heldout-001722", "source": "countdown", "nums": [1, 7, 15, 19], "target": 27, "question": "Using the numbers 1, 7, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(15 + 19) - (1 * 7)"}
{"id": "countdown-heldout-001723", "source": "countdown", "nums": [8, 8, 10, 18], "target": 36, "question": "Using the numbers 8, 8, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(8 * 8) - (10 + 18)"}
{"id": "countdown-heldout-001724", "source": "countdown", "nums": [1, 4, 20, 23], "target": 71, "question": "Using the numbers 1, 4, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(4 * 23) - (1 + 20)"}
{"id": "countdown-heldout-001725", "source": "countdown", "nums": [12, 19, 24, 24], "target": 38, "question": "Using the numbers 12, 19, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(19 * 24) / (24 - 12)"}
{"id": "countdown-heldout-001726", "source": "countdown", "nums": [6, 11, 13, 20], "target": 67, "question": "Using the numbers 6, 11, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "13 - (6 * (11 - 20))"}
{"id": "countdown-heldout-001727", "source": "countdown", "nums": [6, 7, 10, 12], "target": 10, "question": "Using the numbers 6, 7, 10, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "10 * ((6 + 7) - 12)"}
{"id": "countdown-heldout-001728", "source": "countdown", "nums": [3, 10, 20, 20], "target": 43, "question": "Using the numbers 3, 10, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "3 + (20 / (10 / 20))"}
{"id": "countdown-heldout-001729", "source": "countdown", "nums": [13, 13, 21, 23], "target": 28, "question": "Using the numbers 13, 13, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(13 + 13) - (21 - 23)"}
{"id": "countdown-heldout-001730", "source": "countdown", "nums": [2, 5, 14, 23], "target": 80, "question": "Using the numbers 2, 5, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "5 * (23 - (14 / 2))"}
{"id": "countdown-heldout-001731", "source": "countdown", "nums": [4, 9, 22, 24], "target": 76, "question": "Using the numbers 4, 9, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 76.", "answer": "22 + (24 / (4 / 9))"}
{"id": "countdown-heldout-001732", "source": "countdown", "nums": [4, 6, 21, 21], "target": 23, "question": "Using the numbers 4, 6, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(4 * 6) - (21 / 21)"}
{"id": "countdown-heldout-001733", "source": "countdown", "nums": [14, 17, 19, 19], "target": 41, "question": "Using the numbers 14, 17, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(19 + 19) - (14 - 17)"}
{"id": "countdown-heldout-001734", "source": "countdown", "nums": [6, 13, 20, 23], "target": 50, "question": "Using the numbers 6, 13, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(20 + 23) - (6 - 13)"}
{"id": "countdown-heldout-001735", "source": "countdown", "nums": [1, 10, 10, 19], "target": 39, "question": "Using the numbers 1, 10, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(1 * 10) + (10 + 19)"}
{"id": "countdown-heldout-001736", "source": "countdown", "nums": [12, 13, 17, 18], "target": 10, "question": "Using the numbers 12, 13, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(17 + 18) - (12 + 13)"}
{"id": "countdown-heldout-001737", "source": "countdown", "nums": [14, 18, 20, 22], "target": 34, "question": "Using the numbers 14, 18, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(14 + 18) - (20 - 22)"}
{"id": "countdown-heldout-001738", "source": "countdown", "nums": [4, 7, 19, 21], "target": 37, "question": "Using the numbers 4, 7, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(4 - 7) + (19 + 21)"}
{"id": "countdown-heldout-001739", "source": "countdown", "nums": [3, 7, 21, 22], "target": 33, "question": "Using the numbers 3, 7, 21, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(21 + 22) - (3 + 7)"}
{"id": "countdown-heldout-001740", "source": "countdown", "nums": [3, 4, 7, 13], "target": 56, "question": "Using the numbers 3, 4, 7, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(4 * 13) - (3 - 7)"}
{"id": "countdown-heldout-001741", "source": "countdown", "nums": [3, 7, 8, 17], "target": 94, "question": "Using the numbers 3, 7, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "17 + (7 * (3 + 8))"}
{"id": "countdown-heldout-001742", "source": "countdown", "nums": [5, 18, 19, 25], "target": 71, "question": "Using the numbers 5, 18, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(25 / (5 / 18)) - 19"}
{"id": "countdown-heldout-001743", "source": "countdown", "nums": [1, 3, 16, 25], "target": 45, "question": "Using the numbers 1, 3, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(1 + 3) + (16 + 25)"}
{"id": "countdown-heldout-001744", "source": "countdown", "nums": [6, 12, 16, 24], "target": 24, "question": "Using the numbers 6, 12, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(6 + 16) + (24 / 12)"}
{"id": "countdown-heldout-001745", "source": "countdown", "nums": [1, 5, 7, 11], "target": 15, "question": "Using the numbers 1, 5, 7, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "5 * (11 - (1 + 7))"}
{"id": "countdown-heldout-001746", "source": "countdown", "nums": [5, 5, 8, 9], "target": 47, "question": "Using the numbers 5, 5, 8, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(8 * 9) - (5 * 5)"}
{"id": "countdown-heldout-001747", "source": "countdown", "nums": [4, 7, 7, 13], "target": 95, "question": "Using the numbers 4, 7, 7, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "7 * (13 + (4 / 7))"}
{"id": "countdown-heldout-001748", "source": "countdown", "nums": [12, 16, 21, 25], "target": 60, "question": "Using the numbers 12, 16, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(12 * 25) / (21 - 16)"}
{"id": "countdown-heldout-001749", "source": "countdown", "nums": [4, 9, 19, 21], "target": 64, "question": "Using the numbers 4, 9, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(4 * 19) + (9 - 21)"}
{"id": "countdown-heldout-001750", "source": "countdown", "nums": [4, 12, 13, 17], "target": 45, "question": "Using the numbers 4, 12, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(4 - 13) * (12 - 17)"}
{"id": "countdown-heldout-001751", "source": "countdown", "nums": [3, 9, 20, 23], "target": 45, "question": "Using the numbers 3, 9, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "20 / (3 - (23 / 9))"}
{"id": "countdown-heldout-001752", "source": "countdown", "nums": [4, 4, 16, 16], "target": 64, "question": "Using the numbers 4, 4, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(4 * (4 + 16)) - 16"}
{"id": "countdown-heldout-001753", "source": "countdown", "nums": [2, 8, 11, 22], "target": 77, "question": "Using the numbers 2, 8, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 77.", "answer": "(22 / (2 / 8)) - 11"}
{"id": "countdown-heldout-001754", "source": "countdown", "nums": [9, 10, 11, 14], "target": 12, "question": "Using the numbers 9, 10, 11, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 12.", "answer": "14 - ((9 + 11) / 10)"}
{"id": "countdown-heldout-001755", "source": "countdown", "nums": [3, 5, 9, 13], "target": 69, "question": "Using the numbers 3, 5, 9, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 69.", "answer": "(9 * (13 - 5)) - 3"}
{"id": "countdown-heldout-001756", "source": "countdown", "nums": [2, 6, 8, 12], "target": 74, "question": "Using the numbers 2, 6, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(8 * (12 - 2)) - 6"}
{"id": "countdown-heldout-001757", "source": "countdown", "nums": [4, 7, 8, 20], "target": 37, "question": "Using the numbers 4, 7, 8, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(8 + (7 * 20)) / 4"}
{"id": "countdown-heldout-001758", "source": "countdown", "nums": [2, 2, 9, 25], "target": 25, "question": "Using the numbers 2, 2, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "25 + (9 * (2 - 2))"}
{"id": "countdown-heldout-001759", "source": "countdown", "nums": [15, 17, 22, 23], "target": 42, "question": "Using the numbers 15, 17, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "(15 - 22) * (17 - 23)"}
{"id": "countdown-heldout-001760", "source": "countdown", "nums": [3, 3, 4, 17], "target": 26, "question": "Using the numbers 3, 3, 4, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(3 * 4) - (3 - 17)"}
{"id": "countdown-heldout-001761", "source": "countdown", "nums": [2, 4, 14, 20], "target": 35, "question": "Using the numbers 2, 4, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(14 * 20) / (2 * 4)"}
{"id": "countdown-heldout-001762", "source": "countdown", "nums": [2, 9, 14, 23], "target": 21, "question": "Using the numbers 2, 9, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "23 + (14 / (2 - 9))"}
{"id": "countdown-heldout-001763", "source": "countdown", "nums": [2, 7, 9, 19], "target": 33, "question": "Using the numbers 2, 7, 9, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(9 + 19) - (2 - 7)"}
{"id": "countdown-heldout-001764", "source": "countdown", "nums": [5, 6, 23, 24], "target": 67, "question": "Using the numbers 5, 6, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 67.", "answer": "(5 * (24 - 6)) - 23"}
{"id": "countdown-heldout-001765", "source": "countdown", "nums": [2, 8, 9, 20], "target": 44, "question": "Using the numbers 2, 8, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(20 - 9) / (2 / 8)"}
{"id": "countdown-heldout-001766", "source": "countdown", "nums": [1, 5, 9, 23], "target": 68, "question": "Using the numbers 1, 5, 9, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "23 + (9 * (1 * 5))"}
{"id": "countdown-heldout-001767", "source": "countdown", "nums": [3, 14, 17, 23], "target": 17, "question": "Using the numbers 3, 14, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "23 - (17 + (3 - 14))"}
{"id": "countdown-heldout-001768", "source": "countdown", "nums": [3, 9, 19, 25], "target": 72, "question": "Using the numbers 3, 9, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(3 + 9) * (25 - 19)"}
{"id": "countdown-heldout-001769", "source": "countdown", "nums": [5, 13, 20, 25], "target": 13, "question": "Using the numbers 5, 13, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(5 + 13) + (20 - 25)"}
{"id": "countdown-heldout-001770", "source": "countdown", "nums": [4, 15, 19, 19], "target": 72, "question": "Using the numbers 4, 15, 19, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(4 * 19) + (15 - 19)"}
{"id": "countdown-heldout-001771", "source": "countdown", "nums": [5, 7, 14, 21], "target": 16, "question": "Using the numbers 5, 7, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "(5 + 14) - (21 / 7)"}
{"id": "countdown-heldout-001772", "source": "countdown", "nums": [4, 13, 17, 22], "target": 92, "question": "Using the numbers 4, 13, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(4 * 22) - (13 - 17)"}
{"id": "countdown-heldout-001773", "source": "countdown", "nums": [2, 6, 21, 25], "target": 43, "question": "Using the numbers 2, 6, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(21 + 25) - (6 / 2)"}
{"id": "countdown-heldout-001774", "source": "countdown", "nums": [3, 12, 16, 24], "target": 60, "question": "Using the numbers 3, 12, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "12 * (24 - (3 + 16))"}
{"id": "countdown-heldout-001775", "source": "countdown", "nums": [6, 15, 19, 22], "target": 98, "question": "Using the numbers 6, 15, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 98.", "answer": "(6 * 22) - (15 + 19)"}
{"id": "countdown-heldout-001776", "source": "countdown", "nums": [2, 13, 24, 24], "target": 49, "question": "Using the numbers 2, 13, 24, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(13 + 24) + (24 / 2)"}
{"id": "countdown-heldout-001777", "source": "countdown", "nums": [2, 9, 10, 11], "target": 39, "question": "Using the numbers 2, 9, 10, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(2 * 9) + (10 + 11)"}
{"id": "countdown-heldout-001778", "source": "countdown", "nums": [4, 8, 12, 19], "target": 72, "question": "Using the numbers 4, 8, 12, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(4 * 19) + (8 - 12)"}
{"id": "countdown-heldout-001779", "source": "countdown", "nums": [9, 12, 16, 23], "target": 56, "question": "Using the numbers 9, 12, 16, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(9 - 23) * (12 - 16)"}
{"id": "countdown-heldout-001780", "source": "countdown", "nums": [10, 13, 19, 23], "target": 17, "question": "Using the numbers 10, 13, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(13 * 19) - (10 * 23)"}
{"id": "countdown-heldout-001781", "source": "countdown", "nums": [9, 11, 15, 17], "target": 45, "question": "Using the numbers 9, 11, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "15 * ((9 + 11) - 17)"}
{"id": "countdown-heldout-001782", "source": "countdown", "nums": [8, 9, 17, 23], "target": 62, "question": "Using the numbers 8, 9, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "8 - (9 * (17 - 23))"}
{"id": "countdown-heldout-001783", "source": "countdown", "nums": [5, 10, 12, 13], "target": 73, "question": "Using the numbers 5, 10, 12, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "13 - (12 * (5 - 10))"}
{"id": "countdown-heldout-001784", "source": "countdown", "nums": [4, 5, 13, 15], "target": 65, "question": "Using the numbers 4, 5, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "13 * ((4 * 5) - 15)"}
{"id": "countdown-heldout-001785", "source": "countdown", "nums": [3, 15, 15, 19], "target": 56, "question": "Using the numbers 3, 15, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(15 / (3 / 15)) - 19"}
{"id": "countdown-heldout-001786", "source": "countdown", "nums": [5, 7, 17, 22], "target": 56, "question": "Using the numbers 5, 7, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "22 - (17 * (5 - 7))"}
{"id": "countdown-heldout-001787", "source": "countdown", "nums": [9, 10, 17, 24], "target": 48, "question": "Using the numbers 9, 10, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "24 * ((9 + 10) - 17)"}
{"id": "countdown-heldout-001788", "source": "countdown", "nums": [5, 7, 22, 23], "target": 63, "question": "Using the numbers 5, 7, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(22 + 23) / (5 / 7)"}
{"id": "countdown-heldout-001789", "source": "countdown", "nums": [5, 15, 16, 18], "target": 85, "question": "Using the numbers 5, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "5 * (18 + (15 - 16))"}
{"id": "countdown-heldout-001790", "source": "countdown", "nums": [2, 13, 16, 22], "target": 63, "question": "Using the numbers 2, 13, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(2 * (16 + 22)) - 13"}
{"id": "countdown-heldout-001791", "source": "countdown", "nums": [2, 20, 20, 23], "target": 45, "question": "Using the numbers 2, 20, 20, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(2 * 23) - (20 / 20)"}
{"id": "countdown-heldout-001792", "source": "countdown", "nums": [12, 15, 15, 21], "target": 26, "question": "Using the numbers 12, 15, 15, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "21 - (15 / (12 - 15))"}
{"id": "countdown-heldout-001793", "source": "countdown", "nums": [4, 5, 13, 24], "target": 49, "question": "Using the numbers 4, 5, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "5 - (4 * (13 - 24))"}
{"id": "countdown-heldout-001794", "source": "countdown", "nums": [2, 4, 8, 12], "target": 28, "question": "Using the numbers 2, 4, 8, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "12 - (8 * (2 - 4))"}
{"id": "countdown-heldout-001795", "source": "countdown", "nums": [3, 9, 10, 18], "target": 51, "question": "Using the numbers 3, 9, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(18 / (3 / 10)) - 9"}
{"id": "countdown-heldout-001796", "source": "countdown", "nums": [9, 21, 22, 25], "target": 14, "question": "Using the numbers 9, 21, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(9 * (25 - 21)) - 22"}
{"id": "countdown-heldout-001797", "source": "countdown", "nums": [6, 9, 22, 24], "target": 57, "question": "Using the numbers 6, 9, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 57.", "answer": "24 + (22 / (6 / 9))"}
{"id": "countdown-heldout-001798", "source": "countdown", "nums": [2, 8, 14, 22], "target": 46, "question": "Using the numbers 2, 8, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(2 + 8) + (14 + 22)"}
{"id": "countdown-heldout-001799", "source": "countdown", "nums": [1, 2, 10, 19], "target": 13, "question": "Using the numbers 1, 2, 10, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "19 - (1 + (10 / 2))"}
{"id": "countdown-heldout-001800", "source": "countdown", "nums": [10, 15, 18, 23], "target": 99, "question": "Using the numbers 10, 15, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 99.", "answer": "(10 + 23) * (18 - 15)"}
{"id": "countdown-heldout-001801", "source": "countdown", "nums": [1, 9, 15, 23], "target": 16, "question": "Using the numbers 1, 9, 15, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "23 - (15 + (1 - 9))"}
{"id": "countdown-heldout-001802", "source": "countdown", "nums": [2, 4, 10, 22], "target": 21, "question": "Using the numbers 2, 4, 10, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "10 - (22 / (2 - 4))"}
{"id": "countdown-heldout-001803", "source": "countdown", "nums": [2, 10, 17, 22], "target": 74, "question": "Using the numbers 2, 10, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "((10 * 17) - 22) / 2"}
{"id": "countdown-heldout-001804", "source": "countdown", "nums": [1, 5, 15, 18], "target": 78, "question": "Using the numbers 1, 5, 15, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "18 - (15 * (1 - 5))"}
{"id": "countdown-heldout-001805", "source": "countdown", "nums": [16, 18, 18, 22], "target": 22, "question": "Using the numbers 16, 18, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "22 + (16 * (18 - 18))"}
{"id": "countdown-heldout-001806", "source": "countdown", "nums": [2, 8, 18, 22], "target": 14, "question": "Using the numbers 2, 8, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(2 + 8) - (18 - 22)"}
{"id": "countdown-heldout-001807", "source": "countdown", "nums": [3, 12, 24, 25], "target": 73, "question": "Using the numbers 3, 12, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 73.", "answer": "(3 * 25) - (24 / 12)"}
{"id": "countdown-heldout-001808", "source": "countdown", "nums": [1, 5, 8, 13], "target": 20, "question": "Using the numbers 1, 5, 8, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(1 - 5) * (8 - 13)"}
{"id": "countdown-heldout-001809", "source": "countdown", "nums": [6, 6, 7, 10], "target": 15, "question": "Using the numbers 6, 6, 7, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(6 + 6) - (7 - 10)"}
{"id": "countdown-heldout-001810", "source": "countdown", "nums": [1, 4, 13, 15], "target": 48, "question": "Using the numbers 1, 4, 13, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(1 - 13) + (4 * 15)"}
{"id": "countdown-heldout-001811", "source": "countdown", "nums": [2, 4, 22, 24], "target": 17, "question": "Using the numbers 2, 4, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(24 + (2 * 22)) / 4"}
{"id": "countdown-heldout-001812", "source": "countdown", "nums": [4, 6, 9, 25], "target": 95, "question": "Using the numbers 4, 6, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(4 - 9) * (6 - 25)"}
{"id": "countdown-heldout-001813", "source": "countdown", "nums": [2, 18, 23, 24], "target": 72, "question": "Using the numbers 2, 18, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "24 * (23 - (2 + 18))"}
{"id": "countdown-heldout-001814", "source": "countdown", "nums": [9, 12, 16, 19], "target": 81, "question": "Using the numbers 9, 12, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 81.", "answer": "9 * ((12 + 16) - 19)"}
{"id": "countdown-heldout-001815", "source": "countdown", "nums": [2, 5, 16, 22], "target": 36, "question": "Using the numbers 2, 5, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(5 * 16) - (2 * 22)"}
{"id": "countdown-heldout-001816", "source": "countdown", "nums": [6, 12, 18, 24], "target": 19, "question": "Using the numbers 6, 12, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 19.", "answer": "24 - ((12 + 18) / 6)"}
{"id": "countdown-heldout-001817", "source": "countdown", "nums": [5, 20, 22, 25], "target": 85, "question": "Using the numbers 5, 20, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(5 - 22) * (20 - 25)"}
{"id": "countdown-heldout-001818", "source": "countdown", "nums": [2, 12, 23, 24], "target": 82, "question": "Using the numbers 2, 12, 23, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(2 * 23) + (12 + 24)"}
{"id": "countdown-heldout-001819", "source": "countdown", "nums": [19, 19, 20, 25], "target": 25, "question": "Using the numbers 19, 19, 20, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "25 + (20 * (19 - 19))"}
{"id": "countdown-heldout-001820", "source": "countdown", "nums": [2, 3, 18, 23], "target": 65, "question": "Using the numbers 2, 3, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "23 + (2 * (3 + 18))"}
{"id": "countdown-heldout-001821", "source": "countdown", "nums": [1, 2, 6, 9], "target": 13, "question": "Using the numbers 1, 2, 6, 9 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(6 + 9) - (1 * 2)"}
{"id": "countdown-heldout-001822", "source": "countdown", "nums": [4, 4, 17, 24], "target": 51, "question": "Using the numbers 4, 4, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "(17 * 24) / (4 + 4)"}
{"id": "countdown-heldout-001823", "source": "countdown", "nums": [5, 10, 21, 23], "target": 15, "question": "Using the numbers 5, 10, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(10 * (23 - 21)) - 5"}
{"id": "countdown-heldout-001824", "source": "countdown", "nums": [3, 3, 14, 19], "target": 52, "question": "Using the numbers 3, 3, 14, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "19 - (3 * (3 - 14))"}
{"id": "countdown-heldout-001825", "source": "countdown", "nums": [14, 20, 20, 21], "target": 70, "question": "Using the numbers 14, 20, 20, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(20 * 21) / (20 - 14)"}
{"id": "countdown-heldout-001826", "source": "countdown", "nums": [15, 19, 22, 24], "target": 80, "question": "Using the numbers 15, 19, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 80.", "answer": "(15 + 19) + (22 + 24)"}
{"id": "countdown-heldout-001827", "source": "countdown", "nums": [4, 15, 22, 22], "target": 59, "question": "Using the numbers 4, 15, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(4 * 15) - (22 / 22)"}
{"id": "countdown-heldout-001828", "source": "countdown", "nums": [16, 16, 18, 25], "target": 75, "question": "Using the numbers 16, 16, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "(16 + 16) + (18 + 25)"}
{"id": "countdown-heldout-001829", "source": "countdown", "nums": [1, 6, 17, 21], "target": 32, "question": "Using the numbers 1, 6, 17, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(17 + 21) - (1 * 6)"}
{"id": "countdown-heldout-001830", "source": "countdown", "nums": [2, 6, 8, 19], "target": 24, "question": "Using the numbers 2, 6, 8, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(2 * 19) - (6 + 8)"}
{"id": "countdown-heldout-001831", "source": "countdown", "nums": [3, 3, 16, 22], "target": 44, "question": "Using the numbers 3, 3, 16, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(3 + 3) + (16 + 22)"}
{"id": "countdown-heldout-001832", "source": "countdown", "nums": [3, 4, 8, 17], "target": 71, "question": "Using the numbers 3, 4, 8, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "3 - (17 * (4 - 8))"}
{"id": "countdown-heldout-001833", "source": "countdown", "nums": [12, 17, 18, 20], "target": 43, "question": "Using the numbers 12, 17, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 43.", "answer": "(18 + 20) - (12 - 17)"}
{"id": "countdown-heldout-001834", "source": "countdown", "nums": [14, 15, 20, 20], "target": 29, "question": "Using the numbers 14, 15, 20, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(14 + 15) + (20 - 20)"}
{"id": "countdown-heldout-001835", "source": "countdown", "nums": [9, 17, 18, 23], "target": 72, "question": "Using the numbers 9, 17, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "18 - (9 * (17 - 23))"}
{"id": "countdown-heldout-001836", "source": "countdown", "nums": [7, 14, 20, 24], "target": 25, "question": "Using the numbers 7, 14, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(7 + 14) - (20 - 24)"}
{"id": "countdown-heldout-001837", "source": "countdown", "nums": [2, 14, 16, 20], "target": 16, "question": "Using the numbers 2, 14, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 16.", "answer": "20 - (16 + (2 - 14))"}
{"id": "countdown-heldout-001838", "source": "countdown", "nums": [3, 7, 14, 16], "target": 11, "question": "Using the numbers 3, 7, 14, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "3 + (16 * (7 / 14))"}
{"id": "countdown-heldout-001839", "source": "countdown", "nums": [5, 11, 22, 23], "target": 33, "question": "Using the numbers 5, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "23 + (22 * (5 / 11))"}
{"id": "countdown-heldout-001840", "source": "countdown", "nums": [5, 6, 12, 21], "target": 59, "question": "Using the numbers 5, 6, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "5 - (6 * (12 - 21))"}
{"id": "countdown-heldout-001841", "source": "countdown", "nums": [7, 15, 17, 23], "target": 37, "question": "Using the numbers 7, 15, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "23 - (7 * (15 - 17))"}
{"id": "countdown-heldout-001842", "source": "countdown", "nums": [3, 6, 7, 23], "target": 68, "question": "Using the numbers 3, 6, 7, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(3 - 7) * (6 - 23)"}
{"id": "countdown-heldout-001843", "source": "countdown", "nums": [5, 6, 18, 21], "target": 92, "question": "Using the numbers 5, 6, 18, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "(5 - 21) + (6 * 18)"}
{"id": "countdown-heldout-001844", "source": "countdown", "nums": [8, 8, 13, 25], "target": 85, "question": "Using the numbers 8, 8, 13, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 85.", "answer": "(8 - 13) * (8 - 25)"}
{"id": "countdown-heldout-001845", "source": "countdown", "nums": [3, 4, 5, 13], "target": 47, "question": "Using the numbers 3, 4, 5, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(5 * (3 * 4)) - 13"}
{"id": "countdown-heldout-001846", "source": "countdown", "nums": [13, 18, 19, 25], "target": 17, "question": "Using the numbers 13, 18, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(18 * 19) - (13 * 25)"}
{"id": "countdown-heldout-001847", "source": "countdown", "nums": [7, 10, 12, 22], "target": 93, "question": "Using the numbers 7, 10, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 93.", "answer": "(10 * (22 - 12)) - 7"}
{"id": "countdown-heldout-001848", "source": "countdown", "nums": [4, 4, 5, 17], "target": 61, "question": "Using the numbers 4, 4, 5, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "(5 * (17 - 4)) - 4"}
{"id": "countdown-heldout-001849", "source": "countdown", "nums": [2, 4, 10, 16], "target": 42, "question": "Using the numbers 2, 4, 10, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 42.", "answer": "10 - (16 * (2 - 4))"}
{"id": "countdown-heldout-001850", "source": "countdown", "nums": [9, 10, 11, 20], "target": 91, "question": "Using the numbers 9, 10, 11, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "10 - (9 * (11 - 20))"}
{"id": "countdown-heldout-001851", "source": "countdown", "nums": [3, 15, 16, 20], "target": 91, "question": "Using the numbers 3, 15, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(3 * 20) + (15 + 16)"}
{"id": "countdown-heldout-001852", "source": "countdown", "nums": [2, 15, 15, 16], "target": 17, "question": "Using the numbers 2, 15, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(2 + 15) * (16 - 15)"}
{"id": "countdown-heldout-001853", "source": "countdown", "nums": [1, 10, 17, 19], "target": 11, "question": "Using the numbers 1, 10, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "19 - (17 + (1 - 10))"}
{"id": "countdown-heldout-001854", "source": "countdown", "nums": [1, 6, 11, 18], "target": 97, "question": "Using the numbers 1, 6, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 97.", "answer": "(18 * (1 * 6)) - 11"}
{"id": "countdown-heldout-001855", "source": "countdown", "nums": [1, 2, 5, 7], "target": 28, "question": "Using the numbers 1, 2, 5, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "7 * (5 + (1 - 2))"}
{"id": "countdown-heldout-001856", "source": "countdown", "nums": [6, 12, 15, 25], "target": 34, "question": "Using the numbers 6, 12, 15, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(6 - 12) + (15 + 25)"}
{"id": "countdown-heldout-001857", "source": "countdown", "nums": [1, 5, 13, 19], "target": 71, "question": "Using the numbers 1, 5, 13, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "19 - (13 * (1 - 5))"}
{"id": "countdown-heldout-001858", "source": "countdown", "nums": [3, 3, 4, 21], "target": 59, "question": "Using the numbers 3, 3, 4, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "3 * (21 - (4 / 3))"}
{"id": "countdown-heldout-001859", "source": "countdown", "nums": [2, 4, 7, 7], "target": 15, "question": "Using the numbers 2, 4, 7, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(2 - 7) * (4 - 7)"}
{"id": "countdown-heldout-001860", "source": "countdown", "nums": [5, 8, 24, 25], "target": 15, "question": "Using the numbers 5, 8, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "(24 * 25) / (5 * 8)"}
{"id": "countdown-heldout-001861", "source": "countdown", "nums": [1, 5, 17, 25], "target": 13, "question": "Using the numbers 1, 5, 17, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(1 * 5) - (17 - 25)"}
{"id": "countdown-heldout-001862", "source": "countdown", "nums": [4, 18, 19, 21], "target": 32, "question": "Using the numbers 4, 18, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(4 * 18) - (19 + 21)"}
{"id": "countdown-heldout-001863", "source": "countdown", "nums": [3, 3, 5, 21], "target": 35, "question": "Using the numbers 3, 3, 5, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(3 * 3) + (5 + 21)"}
{"id": "countdown-heldout-001864", "source": "countdown", "nums": [1, 4, 4, 22], "target": 18, "question": "Using the numbers 1, 4, 4, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "4 * ((22 / 4) - 1)"}
{"id": "countdown-heldout-001865", "source": "countdown", "nums": [3, 11, 20, 24], "target": 29, "question": "Using the numbers 3, 11, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "(3 * 11) + (20 - 24)"}
{"id": "countdown-heldout-001866", "source": "countdown", "nums": [3, 15, 18, 23], "target": 10, "question": "Using the numbers 3, 15, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(15 / 3) - (18 - 23)"}
{"id": "countdown-heldout-001867", "source": "countdown", "nums": [1, 3, 12, 21], "target": 17, "question": "Using the numbers 1, 3, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "21 - (12 / (1 * 3))"}
{"id": "countdown-heldout-001868", "source": "countdown", "nums": [2, 10, 14, 24], "target": 94, "question": "Using the numbers 2, 10, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "24 + (14 / (2 / 10))"}
{"id": "countdown-heldout-001869", "source": "countdown", "nums": [1, 3, 13, 17], "target": 22, "question": "Using the numbers 1, 3, 13, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "(13 * (1 * 3)) - 17"}
{"id": "countdown-heldout-001870", "source": "countdown", "nums": [1, 4, 11, 21], "target": 23, "question": "Using the numbers 1, 4, 11, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(11 * (1 * 4)) - 21"}
{"id": "countdown-heldout-001871", "source": "countdown", "nums": [1, 2, 9, 12], "target": 83, "question": "Using the numbers 1, 2, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "(12 * (9 - 2)) - 1"}
{"id": "countdown-heldout-001872", "source": "countdown", "nums": [3, 9, 17, 24], "target": 68, "question": "Using the numbers 3, 9, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 68.", "answer": "(3 * 9) + (17 + 24)"}
{"id": "countdown-heldout-001873", "source": "countdown", "nums": [4, 17, 18, 24], "target": 91, "question": "Using the numbers 4, 17, 18, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(24 / (4 / 18)) - 17"}
{"id": "countdown-heldout-001874", "source": "countdown", "nums": [12, 16, 19, 25], "target": 34, "question": "Using the numbers 12, 16, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "(12 + 16) - (19 - 25)"}
{"id": "countdown-heldout-001875", "source": "countdown", "nums": [10, 11, 12, 14], "target": 23, "question": "Using the numbers 10, 11, 12, 14 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "(10 + 11) - (12 - 14)"}
{"id": "countdown-heldout-001876", "source": "countdown", "nums": [1, 17, 22, 24], "target": 36, "question": "Using the numbers 1, 17, 22, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(1 + 17) * (24 - 22)"}
{"id": "countdown-heldout-001877", "source": "countdown", "nums": [5, 7, 8, 24], "target": 26, "question": "Using the numbers 5, 7, 8, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "5 + (24 * (7 / 8))"}
{"id": "countdown-heldout-001878", "source": "countdown", "nums": [3, 5, 9, 24], "target": 96, "question": "Using the numbers 3, 5, 9, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "24 + (9 * (3 + 5))"}
{"id": "countdown-heldout-001879", "source": "countdown", "nums": [4, 5, 5, 21], "target": 74, "question": "Using the numbers 4, 5, 5, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 74.", "answer": "(4 * 21) - (5 + 5)"}
{"id": "countdown-heldout-001880", "source": "countdown", "nums": [1, 2, 5, 22], "target": 52, "question": "Using the numbers 1, 2, 5, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 52.", "answer": "2 * (22 - (1 - 5))"}
{"id": "countdown-heldout-001881", "source": "countdown", "nums": [2, 2, 9, 20], "target": 92, "question": "Using the numbers 2, 2, 9, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 92.", "answer": "2 + (20 / (2 / 9))"}
{"id": "countdown-heldout-001882", "source": "countdown", "nums": [5, 14, 21, 24], "target": 63, "question": "Using the numbers 5, 14, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "((14 * 24) - 21) / 5"}
{"id": "countdown-heldout-001883", "source": "countdown", "nums": [4, 6, 16, 21], "target": 62, "question": "Using the numbers 4, 6, 16, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(6 * 21) - (4 * 16)"}
{"id": "countdown-heldout-001884", "source": "countdown", "nums": [3, 5, 9, 12], "target": 58, "question": "Using the numbers 3, 5, 9, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(3 * (9 + 12)) - 5"}
{"id": "countdown-heldout-001885", "source": "countdown", "nums": [9, 10, 14, 23], "target": 59, "question": "Using the numbers 9, 10, 14, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "23 - (9 * (10 - 14))"}
{"id": "countdown-heldout-001886", "source": "countdown", "nums": [2, 13, 17, 24], "target": 27, "question": "Using the numbers 2, 13, 17, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 27.", "answer": "(24 + (13 + 17)) / 2"}
{"id": "countdown-heldout-001887", "source": "countdown", "nums": [4, 4, 7, 8], "target": 10, "question": "Using the numbers 4, 4, 7, 8 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "(8 / (4 / 7)) - 4"}
{"id": "countdown-heldout-001888", "source": "countdown", "nums": [1, 5, 9, 17], "target": 39, "question": "Using the numbers 1, 5, 9, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(5 * (17 - 9)) - 1"}
{"id": "countdown-heldout-001889", "source": "countdown", "nums": [3, 10, 16, 18], "target": 41, "question": "Using the numbers 3, 10, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 41.", "answer": "(16 + 18) - (3 - 10)"}
{"id": "countdown-heldout-001890", "source": "countdown", "nums": [1, 2, 16, 20], "target": 17, "question": "Using the numbers 1, 2, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "((16 + 20) / 2) - 1"}
{"id": "countdown-heldout-001891", "source": "countdown", "nums": [3, 5, 16, 25], "target": 82, "question": "Using the numbers 3, 5, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 82.", "answer": "(5 - 3) * (16 + 25)"}
{"id": "countdown-heldout-001892", "source": "countdown", "nums": [13, 17, 21, 23], "target": 58, "question": "Using the numbers 13, 17, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 58.", "answer": "(17 * 21) - (13 * 23)"}
{"id": "countdown-heldout-001893", "source": "countdown", "nums": [2, 16, 18, 19], "target": 49, "question": "Using the numbers 2, 16, 18, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(2 * (16 + 18)) - 19"}
{"id": "countdown-heldout-001894", "source": "countdown", "nums": [7, 15, 19, 23], "target": 20, "question": "Using the numbers 7, 15, 19, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 20.", "answer": "(19 + 23) - (7 + 15)"}
{"id": "countdown-heldout-001895", "source": "countdown", "nums": [5, 6, 7, 19], "target": 17, "question": "Using the numbers 5, 6, 7, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "19 - ((5 + 7) / 6)"}
{"id": "countdown-heldout-001896", "source": "countdown", "nums": [1, 2, 7, 25], "target": 37, "question": "Using the numbers 1, 2, 7, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "25 - (2 * (1 - 7))"}
{"id": "countdown-heldout-001897", "source": "countdown", "nums": [3, 5, 7, 22], "target": 100, "question": "Using the numbers 3, 5, 7, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 100.", "answer": "(5 * 22) - (3 + 7)"}
{"id": "countdown-heldout-001898", "source": "countdown", "nums": [3, 9, 16, 24], "target": 83, "question": "Using the numbers 3, 9, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 83.", "answer": "(3 * (9 + 24)) - 16"}
{"id": "countdown-heldout-001899", "source": "countdown", "nums": [1, 4, 5, 13], "target": 28, "question": "Using the numbers 1, 4, 5, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "13 - (5 * (1 - 4))"}
{"id": "countdown-heldout-001900", "source": "countdown", "nums": [4, 7, 18, 23], "target": 63, "question": "Using the numbers 4, 7, 18, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "7 * (23 + (4 - 18))"}
{"id": "countdown-heldout-001901", "source": "countdown", "nums": [3, 13, 17, 18], "target": 34, "question": "Using the numbers 3, 13, 17, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 34.", "answer": "17 * (18 - (3 + 13))"}
{"id": "countdown-heldout-001902", "source": "countdown", "nums": [1, 3, 9, 25], "target": 61, "question": "Using the numbers 1, 3, 9, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 61.", "answer": "25 + (9 * (1 + 3))"}
{"id": "countdown-heldout-001903", "source": "countdown", "nums": [1, 15, 21, 21], "target": 14, "question": "Using the numbers 1, 15, 21, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(21 - 21) - (1 - 15)"}
{"id": "countdown-heldout-001904", "source": "countdown", "nums": [3, 11, 22, 23], "target": 29, "question": "Using the numbers 3, 11, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 29.", "answer": "23 + (22 * (3 / 11))"}
{"id": "countdown-heldout-001905", "source": "countdown", "nums": [7, 18, 21, 23], "target": 33, "question": "Using the numbers 7, 18, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(7 - 18) + (21 + 23)"}
{"id": "countdown-heldout-001906", "source": "countdown", "nums": [5, 10, 14, 18], "target": 37, "question": "Using the numbers 5, 10, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(14 + 18) - (5 - 10)"}
{"id": "countdown-heldout-001907", "source": "countdown", "nums": [3, 10, 14, 18], "target": 25, "question": "Using the numbers 3, 10, 14, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(3 - 10) + (14 + 18)"}
{"id": "countdown-heldout-001908", "source": "countdown", "nums": [8, 21, 22, 23], "target": 36, "question": "Using the numbers 8, 21, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(22 * (23 - 21)) - 8"}
{"id": "countdown-heldout-001909", "source": "countdown", "nums": [2, 14, 20, 24], "target": 11, "question": "Using the numbers 2, 14, 20, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 11.", "answer": "(14 / 2) - (20 - 24)"}
{"id": "countdown-heldout-001910", "source": "countdown", "nums": [5, 7, 11, 19], "target": 96, "question": "Using the numbers 5, 7, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(5 + 7) * (19 - 11)"}
{"id": "countdown-heldout-001911", "source": "countdown", "nums": [2, 8, 21, 25], "target": 55, "question": "Using the numbers 2, 8, 21, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "21 - (2 * (8 - 25))"}
{"id": "countdown-heldout-001912", "source": "countdown", "nums": [5, 7, 10, 18], "target": 55, "question": "Using the numbers 5, 7, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 55.", "answer": "(5 - 10) * (7 - 18)"}
{"id": "countdown-heldout-001913", "source": "countdown", "nums": [8, 13, 17, 19], "target": 38, "question": "Using the numbers 8, 13, 17, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "(8 * 19) / (17 - 13)"}
{"id": "countdown-heldout-001914", "source": "countdown", "nums": [5, 15, 16, 18], "target": 25, "question": "Using the numbers 5, 15, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "15 - (5 * (16 - 18))"}
{"id": "countdown-heldout-001915", "source": "countdown", "nums": [5, 11, 18, 18], "target": 66, "question": "Using the numbers 5, 11, 18, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "11 * (5 + (18 / 18))"}
{"id": "countdown-heldout-001916", "source": "countdown", "nums": [4, 15, 15, 20], "target": 50, "question": "Using the numbers 4, 15, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "(4 * 20) - (15 + 15)"}
{"id": "countdown-heldout-001917", "source": "countdown", "nums": [13, 14, 19, 25], "target": 28, "question": "Using the numbers 13, 14, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(13 + 25) * (14 / 19)"}
{"id": "countdown-heldout-001918", "source": "countdown", "nums": [5, 7, 22, 25], "target": 65, "question": "Using the numbers 5, 7, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "(7 * 25) - (5 * 22)"}
{"id": "countdown-heldout-001919", "source": "countdown", "nums": [1, 7, 15, 24], "target": 45, "question": "Using the numbers 1, 7, 15, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(15 * 24) / (1 + 7)"}
{"id": "countdown-heldout-001920", "source": "countdown", "nums": [3, 16, 16, 16], "target": 45, "question": "Using the numbers 3, 16, 16, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(16 + 16) - (3 - 16)"}
{"id": "countdown-heldout-001921", "source": "countdown", "nums": [14, 20, 24, 25], "target": 94, "question": "Using the numbers 14, 20, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 94.", "answer": "24 - (14 * (20 - 25))"}
{"id": "countdown-heldout-001922", "source": "countdown", "nums": [1, 2, 11, 22], "target": 30, "question": "Using the numbers 1, 2, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(11 + 22) - (1 + 2)"}
{"id": "countdown-heldout-001923", "source": "countdown", "nums": [8, 11, 17, 23], "target": 40, "question": "Using the numbers 8, 11, 17, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 40.", "answer": "8 * ((11 + 17) - 23)"}
{"id": "countdown-heldout-001924", "source": "countdown", "nums": [2, 3, 5, 23], "target": 13, "question": "Using the numbers 2, 3, 5, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "23 - (5 + (2 + 3))"}
{"id": "countdown-heldout-001925", "source": "countdown", "nums": [5, 14, 16, 20], "target": 66, "question": "Using the numbers 5, 14, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 66.", "answer": "(5 * 14) + (16 - 20)"}
{"id": "countdown-heldout-001926", "source": "countdown", "nums": [11, 17, 25, 25], "target": 78, "question": "Using the numbers 11, 17, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(11 + 17) + (25 + 25)"}
{"id": "countdown-heldout-001927", "source": "countdown", "nums": [3, 9, 15, 19], "target": 28, "question": "Using the numbers 3, 9, 15, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 28.", "answer": "(3 - 9) + (15 + 19)"}
{"id": "countdown-heldout-001928", "source": "countdown", "nums": [2, 7, 7, 13], "target": 17, "question": "Using the numbers 2, 7, 7, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "7 + ((7 + 13) / 2)"}
{"id": "countdown-heldout-001929", "source": "countdown", "nums": [2, 6, 10, 15], "target": 26, "question": "Using the numbers 2, 6, 10, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 26.", "answer": "(2 * 15) + (6 - 10)"}
{"id": "countdown-heldout-001930", "source": "countdown", "nums": [4, 5, 21, 23], "target": 35, "question": "Using the numbers 4, 5, 21, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(21 + 23) - (4 + 5)"}
{"id": "countdown-heldout-001931", "source": "countdown", "nums": [8, 10, 13, 21], "target": 54, "question": "Using the numbers 8, 10, 13, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "(8 * (21 - 13)) - 10"}
{"id": "countdown-heldout-001932", "source": "countdown", "nums": [5, 8, 14, 22], "target": 95, "question": "Using the numbers 5, 8, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 95.", "answer": "(5 - 22) + (8 * 14)"}
{"id": "countdown-heldout-001933", "source": "countdown", "nums": [8, 9, 14, 22], "target": 62, "question": "Using the numbers 8, 9, 14, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "22 - (8 * (9 - 14))"}
{"id": "countdown-heldout-001934", "source": "countdown", "nums": [1, 3, 17, 20], "target": 24, "question": "Using the numbers 1, 3, 17, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "17 + ((1 + 20) / 3)"}
{"id": "countdown-heldout-001935", "source": "countdown", "nums": [1, 11, 21, 24], "target": 44, "question": "Using the numbers 1, 11, 21, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "11 * (24 + (1 - 21))"}
{"id": "countdown-heldout-001936", "source": "countdown", "nums": [1, 3, 4, 12], "target": 45, "question": "Using the numbers 1, 3, 4, 12 exactly once each, with +, -, *, / and parentheses, write an expression that equals 45.", "answer": "(4 * 12) - (1 * 3)"}
{"id": "countdown-heldout-001937", "source": "countdown", "nums": [1, 4, 7, 18], "target": 64, "question": "Using the numbers 1, 4, 7, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 64.", "answer": "(4 * 18) - (1 + 7)"}
{"id": "countdown-heldout-001938", "source": "countdown", "nums": [2, 4, 14, 24], "target": 24, "question": "Using the numbers 2, 4, 14, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "14 - ((4 - 24) / 2)"}
{"id": "countdown-heldout-001939", "source": "countdown", "nums": [10, 10, 25, 25], "target": 10, "question": "Using the numbers 10, 10, 25, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 10.", "answer": "10 + (10 * (25 - 25))"}
{"id": "countdown-heldout-001940", "source": "countdown", "nums": [5, 5, 6, 16], "target": 75, "question": "Using the numbers 5, 5, 6, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 75.", "answer": "5 * (16 + (5 - 6))"}
{"id": "countdown-heldout-001941", "source": "countdown", "nums": [1, 3, 12, 20], "target": 32, "question": "Using the numbers 1, 3, 12, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(1 + 3) * (20 - 12)"}
{"id": "countdown-heldout-001942", "source": "countdown", "nums": [5, 12, 15, 20], "target": 96, "question": "Using the numbers 5, 12, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 96.", "answer": "(12 + 20) / (5 / 15)"}
{"id": "countdown-heldout-001943", "source": "countdown", "nums": [2, 2, 10, 25], "target": 65, "question": "Using the numbers 2, 2, 10, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 65.", "answer": "25 + (10 * (2 + 2))"}
{"id": "countdown-heldout-001944", "source": "countdown", "nums": [2, 4, 4, 18], "target": 90, "question": "Using the numbers 2, 4, 4, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 90.", "answer": "2 + (4 * (4 + 18))"}
{"id": "countdown-heldout-001945", "source": "countdown", "nums": [14, 16, 19, 24], "target": 14, "question": "Using the numbers 14, 16, 19, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "16 - ((14 + 24) / 19)"}
{"id": "countdown-heldout-001946", "source": "countdown", "nums": [6, 8, 11, 15], "target": 38, "question": "Using the numbers 6, 8, 11, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "6 - (8 * (11 - 15))"}
{"id": "countdown-heldout-001947", "source": "countdown", "nums": [4, 6, 16, 17], "target": 71, "question": "Using the numbers 4, 6, 16, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 71.", "answer": "(4 * (6 + 16)) - 17"}
{"id": "countdown-heldout-001948", "source": "countdown", "nums": [11, 13, 16, 19], "target": 54, "question": "Using the numbers 11, 13, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 54.", "answer": "16 - (19 * (11 - 13))"}
{"id": "countdown-heldout-001949", "source": "countdown", "nums": [3, 4, 19, 25], "target": 32, "question": "Using the numbers 3, 4, 19, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(19 + 25) - (3 * 4)"}
{"id": "countdown-heldout-001950", "source": "countdown", "nums": [2, 3, 16, 24], "target": 62, "question": "Using the numbers 2, 3, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 62.", "answer": "(3 * (2 + 24)) - 16"}
{"id": "countdown-heldout-001951", "source": "countdown", "nums": [16, 23, 23, 23], "target": 39, "question": "Using the numbers 16, 23, 23, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "(16 + 23) + (23 - 23)"}
{"id": "countdown-heldout-001952", "source": "countdown", "nums": [2, 3, 13, 24], "target": 39, "question": "Using the numbers 2, 3, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "3 * (24 + (2 - 13))"}
{"id": "countdown-heldout-001953", "source": "countdown", "nums": [2, 10, 11, 24], "target": 47, "question": "Using the numbers 2, 10, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 47.", "answer": "(2 + 10) + (11 + 24)"}
{"id": "countdown-heldout-001954", "source": "countdown", "nums": [4, 9, 16, 20], "target": 30, "question": "Using the numbers 4, 9, 16, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(9 + 16) + (20 / 4)"}
{"id": "countdown-heldout-001955", "source": "countdown", "nums": [2, 22, 24, 25], "target": 35, "question": "Using the numbers 2, 22, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "(22 + 25) - (24 / 2)"}
{"id": "countdown-heldout-001956", "source": "countdown", "nums": [2, 3, 4, 20], "target": 56, "question": "Using the numbers 2, 3, 4, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "4 * (20 - (2 * 3))"}
{"id": "countdown-heldout-001957", "source": "countdown", "nums": [3, 3, 13, 20], "target": 63, "question": "Using the numbers 3, 3, 13, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 63.", "answer": "(3 * 3) * (20 - 13)"}
{"id": "countdown-heldout-001958", "source": "countdown", "nums": [3, 11, 14, 21], "target": 15, "question": "Using the numbers 3, 11, 14, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "21 - (14 + (3 - 11))"}
{"id": "countdown-heldout-001959", "source": "countdown", "nums": [1, 11, 12, 21], "target": 22, "question": "Using the numbers 1, 11, 12, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "21 + (12 / (1 + 11))"}
{"id": "countdown-heldout-001960", "source": "countdown", "nums": [6, 10, 11, 19], "target": 25, "question": "Using the numbers 6, 10, 11, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 25.", "answer": "(6 + 19) * (11 - 10)"}
{"id": "countdown-heldout-001961", "source": "countdown", "nums": [2, 21, 23, 25], "target": 48, "question": "Using the numbers 2, 21, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 48.", "answer": "(2 * 25) + (21 - 23)"}
{"id": "countdown-heldout-001962", "source": "countdown", "nums": [1, 3, 3, 13], "target": 14, "question": "Using the numbers 1, 3, 3, 13 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(1 + 3) - (3 - 13)"}
{"id": "countdown-heldout-001963", "source": "countdown", "nums": [1, 9, 11, 18], "target": 70, "question": "Using the numbers 1, 9, 11, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(1 + 9) * (18 - 11)"}
{"id": "countdown-heldout-001964", "source": "countdown", "nums": [2, 16, 16, 23], "target": 23, "question": "Using the numbers 2, 16, 16, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "23 + (2 * (16 - 16))"}
{"id": "countdown-heldout-001965", "source": "countdown", "nums": [9, 16, 23, 25], "target": 14, "question": "Using the numbers 9, 16, 23, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 14.", "answer": "(9 - 16) * (23 - 25)"}
{"id": "countdown-heldout-001966", "source": "countdown", "nums": [2, 3, 11, 24], "target": 44, "question": "Using the numbers 2, 3, 11, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(11 * 24) / (2 * 3)"}
{"id": "countdown-heldout-001967", "source": "countdown", "nums": [2, 9, 22, 23], "target": 59, "question": "Using the numbers 2, 9, 22, 23 exactly once each, with +, -, *, / and parentheses, write an expression that equals 59.", "answer": "(2 * 23) - (9 - 22)"}
{"id": "countdown-heldout-001968", "source": "countdown", "nums": [7, 17, 22, 25], "target": 21, "question": "Using the numbers 7, 17, 22, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(7 + 17) + (22 - 25)"}
{"id": "countdown-heldout-001969", "source": "countdown", "nums": [2, 5, 8, 21], "target": 51, "question": "Using the numbers 2, 5, 8, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 51.", "answer": "21 - (5 * (2 - 8))"}
{"id": "countdown-heldout-001970", "source": "countdown", "nums": [12, 16, 19, 21], "target": 44, "question": "Using the numbers 12, 16, 19, 21 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "(19 + 21) - (12 - 16)"}
{"id": "countdown-heldout-001971", "source": "countdown", "nums": [7, 8, 11, 16], "target": 33, "question": "Using the numbers 7, 8, 11, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 33.", "answer": "(8 * (16 - 11)) - 7"}
{"id": "countdown-heldout-001972", "source": "countdown", "nums": [14, 15, 18, 25], "target": 72, "question": "Using the numbers 14, 15, 18, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 72.", "answer": "(14 + 15) + (18 + 25)"}
{"id": "countdown-heldout-001973", "source": "countdown", "nums": [3, 5, 6, 7], "target": 17, "question": "Using the numbers 3, 5, 6, 7 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "7 + (6 / (3 / 5))"}
{"id": "countdown-heldout-001974", "source": "countdown", "nums": [3, 9, 11, 22], "target": 36, "question": "Using the numbers 3, 9, 11, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 36.", "answer": "(9 / 3) + (11 + 22)"}
{"id": "countdown-heldout-001975", "source": "countdown", "nums": [3, 3, 10, 18], "target": 39, "question": "Using the numbers 3, 3, 10, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 39.", "answer": "18 - (3 * (3 - 10))"}
{"id": "countdown-heldout-001976", "source": "countdown", "nums": [12, 17, 24, 25], "target": 78, "question": "Using the numbers 12, 17, 24, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 78.", "answer": "(12 + 17) + (24 + 25)"}
{"id": "countdown-heldout-001977", "source": "countdown", "nums": [7, 12, 16, 18], "target": 17, "question": "Using the numbers 7, 12, 16, 18 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(7 + 12) + (16 - 18)"}
{"id": "countdown-heldout-001978", "source": "countdown", "nums": [2, 3, 8, 11], "target": 49, "question": "Using the numbers 2, 3, 8, 11 exactly once each, with +, -, *, / and parentheses, write an expression that equals 49.", "answer": "(2 * 8) + (3 * 11)"}
{"id": "countdown-heldout-001979", "source": "countdown", "nums": [3, 12, 12, 17], "target": 21, "question": "Using the numbers 3, 12, 12, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 21.", "answer": "(3 + 17) + (12 / 12)"}
{"id": "countdown-heldout-001980", "source": "countdown", "nums": [7, 8, 9, 10], "target": 70, "question": "Using the numbers 7, 8, 9, 10 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(7 * 10) * (9 - 8)"}
{"id": "countdown-heldout-001981", "source": "countdown", "nums": [3, 4, 6, 15], "target": 23, "question": "Using the numbers 3, 4, 6, 15 exactly once each, with +, -, *, / and parentheses, write an expression that equals 23.", "answer": "15 + (6 / (3 / 4))"}
{"id": "countdown-heldout-001982", "source": "countdown", "nums": [5, 5, 20, 22], "target": 35, "question": "Using the numbers 5, 5, 20, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 35.", "answer": "5 * (22 + (5 - 20))"}
{"id": "countdown-heldout-001983", "source": "countdown", "nums": [6, 9, 18, 20], "target": 24, "question": "Using the numbers 6, 9, 18, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 24.", "answer": "(18 * 20) / (6 + 9)"}
{"id": "countdown-heldout-001984", "source": "countdown", "nums": [8, 15, 15, 17], "target": 38, "question": "Using the numbers 8, 15, 15, 17 exactly once each, with +, -, *, / and parentheses, write an expression that equals 38.", "answer": "8 - (15 * (15 - 17))"}
{"id": "countdown-heldout-001985", "source": "countdown", "nums": [8, 8, 16, 24], "target": 22, "question": "Using the numbers 8, 8, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 22.", "answer": "((8 * 24) - 16) / 8"}
{"id": "countdown-heldout-001986", "source": "countdown", "nums": [1, 10, 14, 20], "target": 50, "question": "Using the numbers 1, 10, 14, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 50.", "answer": "10 * (20 - (1 + 14))"}
{"id": "countdown-heldout-001987", "source": "countdown", "nums": [8, 17, 19, 22], "target": 18, "question": "Using the numbers 8, 17, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 18.", "answer": "22 + (8 / (17 - 19))"}
{"id": "countdown-heldout-001988", "source": "countdown", "nums": [7, 15, 22, 22], "target": 44, "question": "Using the numbers 7, 15, 22, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 44.", "answer": "((15 * 22) - 22) / 7"}
{"id": "countdown-heldout-001989", "source": "countdown", "nums": [1, 3, 16, 25], "target": 13, "question": "Using the numbers 1, 3, 16, 25 exactly once each, with +, -, *, / and parentheses, write an expression that equals 13.", "answer": "(1 + 3) - (16 - 25)"}
{"id": "countdown-heldout-001990", "source": "countdown", "nums": [3, 7, 13, 24], "target": 15, "question": "Using the numbers 3, 7, 13, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 15.", "answer": "24 - (13 + (3 - 7))"}
{"id": "countdown-heldout-001991", "source": "countdown", "nums": [7, 12, 16, 19], "target": 30, "question": "Using the numbers 7, 12, 16, 19 exactly once each, with +, -, *, / and parentheses, write an expression that equals 30.", "answer": "(7 - 12) + (16 + 19)"}
{"id": "countdown-heldout-001992", "source": "countdown", "nums": [6, 12, 15, 16], "target": 32, "question": "Using the numbers 6, 12, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 32.", "answer": "(6 * 16) / (15 - 12)"}
{"id": "countdown-heldout-001993", "source": "countdown", "nums": [9, 10, 17, 22], "target": 91, "question": "Using the numbers 9, 10, 17, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 91.", "answer": "(9 - 22) * (10 - 17)"}
{"id": "countdown-heldout-001994", "source": "countdown", "nums": [2, 8, 12, 22], "target": 60, "question": "Using the numbers 2, 8, 12, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 60.", "answer": "(2 - 8) * (12 - 22)"}
{"id": "countdown-heldout-001995", "source": "countdown", "nums": [7, 11, 18, 22], "target": 17, "question": "Using the numbers 7, 11, 18, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 17.", "answer": "(7 * (22 - 18)) - 11"}
{"id": "countdown-heldout-001996", "source": "countdown", "nums": [17, 17, 19, 22], "target": 37, "question": "Using the numbers 17, 17, 19, 22 exactly once each, with +, -, *, / and parentheses, write an expression that equals 37.", "answer": "(17 + 17) - (19 - 22)"}
{"id": "countdown-heldout-001997", "source": "countdown", "nums": [10, 15, 16, 24], "target": 56, "question": "Using the numbers 10, 15, 16, 24 exactly once each, with +, -, *, / and parentheses, write an expression that equals 56.", "answer": "(16 * (15 - 10)) - 24"}
{"id": "countdown-heldout-001998", "source": "countdown", "nums": [1, 2, 15, 20], "target": 70, "question": "Using the numbers 1, 2, 15, 20 exactly once each, with +, -, *, / and parentheses, write an expression that equals 70.", "answer": "(1 * 2) * (15 + 20)"}
{"id": "countdown-heldout-001999", "source": "countdown", "nums": [5, 9, 15, 16], "target": 46, "question": "Using the numbers 5, 9, 15, 16 exactly once each, with +, -, *, / and parentheses, write an expression that equals 46.", "answer": "(5 * 9) - (15 - 16)"}