id
int64
1
735k
topic
stringclasses
11 values
difficulty
stringclasses
2 values
question
stringlengths
12
91
answer
stringlengths
1
11
reasoning
stringlengths
20
98
category
stringclasses
19 values
8,601
statistics
easy
What is the mean (average) of 88, 98, 81?
89
Mean = sum/count. Sum = 88+98+81=267. Count=3. Mean=267/3=89.0.
mean
8,602
percentages
easy
What is 91% of 700?
637
Calculate 91/100 * 700 = 0.91*700 = 637.
percentages
8,603
algebra
medium
Solve for x: x^2 + 17x + 72 = 0
x = -9, -8
Factor: (x - -9)(x - -8) = x^2 -(-17)x + 72 = 0. So x = -9 or -8. Check sum = -17, product = 72.
quadratic
8,604
arithmetic
easy
What is 691 - 177?
514
Subtract: 691 - 177 = 514.
basic_operations
8,605
statistics
easy
What is the mean (average) of 83, 59, 87, 89?
79.5
Mean = sum/count. Sum = 83+59+87+89=318. Count=4. Mean=318/4=79.5.
mean
8,606
roots
easy
What is the square root of 1681?
41
Find number that when squared gives 1681. 41*41=1681, so sqrt(1681)=41.
square_roots
8,607
percentages
easy
What is 77% of 433?
333.41
Calculate 77/100 * 433 = 0.77*433 = 333.41.
percentages
8,608
roots
easy
What is the square root of 1521?
39
Find number that when squared gives 1521. 39*39=1521, so sqrt(1521)=39.
square_roots
8,609
word_problems
easy
If you have 100 dollars and you buy 20 more dollars, how many dollars do you have in total?
120
Add initial 100 plus bought 20: 100+20=120.
addition_word
8,610
algebra
medium
Solve for x: x^2 + 5x - 6 = 0
x = 1, -6
Factor: (x - 1)(x - -6) = x^2 -(-5)x + -6 = 0. So x = 1 or -6. Check sum = -5, product = -6.
quadratic
8,611
calculus
medium
What is the derivative of 10x^7 with respect to x?
70x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^7] = 10*7*x^6 = 70x^6.
derivative
8,612
geometry
easy
Find the perimeter of a rectangle with length 8 and width 37.
90
Perimeter = 2*(length+width) = 2*(8+37) = 2*45 = 90.
rectangle_perim
8,613
arithmetic
easy
What is 415 - 292?
123
Subtract: 415 - 292 = 123.
basic_operations
8,614
fractions
medium
What is 15/11 + 2/13? Give as simplified fraction.
217/143
Common denominator 11*13=143. 15/11=195/143, 2/13=22/143. Sum = 217/143 = 217/143 simplified.
fraction_operations
8,615
fractions
medium
What is 8/16 - 20/9? Give as simplified fraction.
-31/18
Common denominator 144. Numerator 72-320=-248. So -248/144 simplifies to -31/18.
fraction_operations
8,616
calculus
medium
What is the indefinite integral of x^7 dx?
x^8/8 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^7 = x^8/8 + C.
integral
8,617
calculus
medium
What is the derivative of 10x^7 with respect to x?
70x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^7] = 10*7*x^6 = 70x^6.
derivative
8,618
word_problems
easy
If you have 53 apples and you buy 35 more apples, how many apples do you have in total?
88
Add initial 53 plus bought 35: 53+35=88.
addition_word
8,619
calculus
medium
What is the derivative of 1x^8 with respect to x?
8x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^8] = 1*8*x^7 = 8x^7.
derivative
8,620
roots
easy
What is the square root of 484?
22
Find number that when squared gives 484. 22*22=484, so sqrt(484)=22.
square_roots
8,621
statistics
easy
What is the mean (average) of 59, 39, 77?
58.33
Mean = sum/count. Sum = 59+39+77=175. Count=3. Mean=175/3=58.33.
mean
8,622
arithmetic
easy
What is 820 - 372?
448
Subtract: 820 - 372 = 448.
basic_operations
8,623
calculus
medium
What is the derivative of 9x^6 with respect to x?
54x^5
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^6] = 9*6*x^5 = 54x^5.
derivative
8,624
arithmetic
easy
What is 5 + 66 * 76? Remember order of operations.
5021
Order of operations (PEMDAS): first 66*76=5016, then 5+5016=5021.
basic_operations
8,625
roots
easy
What is the square root of 1089?
33
Find number that when squared gives 1089. 33*33=1089, so sqrt(1089)=33.
square_roots
8,626
calculus
medium
What is the derivative of 5x^3 with respect to x?
15x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [5x^3] = 5*3*x^2 = 15x^2.
derivative
8,627
arithmetic
easy
What is 691 + 365 * 57? Remember order of operations.
21496
Order of operations (PEMDAS): first 365*57=20805, then 691+20805=21496.
basic_operations
8,628
arithmetic
easy
What is 56 + 27 * 74? Remember order of operations.
2054
Order of operations (PEMDAS): first 27*74=1998, then 56+1998=2054.
basic_operations
8,629
number_theory
medium
What is the LCM (least common multiple) of 98 and 32?
1568
LCM = |98*32| / GCD(98,32). GCD=2, so LCM=3136/2=1568.
lcm
8,630
algebra
easy
Solve for x: 15x + 44 = 299
17
Subtract 44 from both sides: 15x = 299-44=255. Then divide by 15: x = 255/15 = 17.
linear_equation
8,631
arithmetic
easy
What is 6468 / 14?
462
Divide: 6468 ÷ 14 = 462 because 14*462=6468.
division
8,632
arithmetic
easy
What is 933 - 718?
215
Subtract: 933 - 718 = 215.
basic_operations
8,633
arithmetic
easy
What is 986 - 548?
438
Subtract: 986 - 548 = 438.
basic_operations
8,634
roots
easy
What is the square root of 1521?
39
Find number that when squared gives 1521. 39*39=1521, so sqrt(1521)=39.
square_roots
8,635
percentages
easy
What is 22% of 79?
17.38
Calculate 22/100 * 79 = 0.22*79 = 17.38.
percentages
8,636
percentages
easy
What is 46% of 847?
389.62
Calculate 46/100 * 847 = 0.46*847 = 389.62.
percentages
8,637
calculus
medium
What is the indefinite integral of x^1 dx?
x^2/2 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^1 = x^2/2 + C.
integral
8,638
fractions
medium
What is 2/16 * 7/10? Give as simplified fraction.
7/80
Multiply numerators: 2*7=14. Denominators: 16*10=160. Simplify by gcd 2 to get 7/80.
fraction_operations
8,639
arithmetic
easy
What is 899 + 778 * 6? Remember order of operations.
5567
Order of operations (PEMDAS): first 778*6=4668, then 899+4668=5567.
basic_operations
8,640
calculus
medium
What is the indefinite integral of x^3 dx?
x^4/4 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^3 = x^4/4 + C.
integral
8,641
algebra
easy
Solve for x: 12x + 28 = 160
11
Subtract 28 from both sides: 12x = 160-28=132. Then divide by 12: x = 132/12 = 11.
linear_equation
8,642
algebra
easy
Solve for x: 1x - 8 = -7
1
Add 8 to both sides: 1x = -7+8=1. Then x = 1/1 = 1.
linear_equation
8,643
exponents
easy
What is 10^3?
1000
10^3 means multiply 10 by itself 3 times: 10*10*10 = 1000.
exponents
8,644
statistics
easy
What is the mean (average) of 14, 92, 79, 19, 9?
42.6
Mean = sum/count. Sum = 14+92+79+19+9=213. Count=5. Mean=213/5=42.6.
mean
8,645
exponents
easy
What is 9^4?
6561
9^4 means multiply 9 by itself 4 times: 9*9*9*9 = 6561.
exponents
8,646
geometry
easy
Find the circumference of a circle with radius 20. Use pi=3.14159, round to 2 decimals.
125.66
Circumference = 2*pi*r = 2*3.14159*20 = 125.66.
circle_circum
8,647
calculus
medium
What is the derivative of 5x^2 with respect to x?
10x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [5x^2] = 5*2*x^1 = 10x.
derivative
8,648
algebra
medium
Solve for x: x^2 - 5x - 24 = 0
x = 8, -3
Factor: (x - 8)(x - -3) = x^2 -(5)x + -24 = 0. So x = 8 or -3. Check sum = 5, product = -24.
quadratic
8,649
word_problems
easy
If you have 18 pencils and you buy 31 more pencils, how many pencils do you have in total?
49
Add initial 18 plus bought 31: 18+31=49.
addition_word
8,650
geometry
easy
Find the circumference of a circle with radius 12. Use pi=3.14159, round to 2 decimals.
75.4
Circumference = 2*pi*r = 2*3.14159*12 = 75.4.
circle_circum
8,651
arithmetic
easy
What is 441 + 269 * 11? Remember order of operations.
3400
Order of operations (PEMDAS): first 269*11=2959, then 441+2959=3400.
basic_operations
8,652
roots
easy
What is the square root of 1225?
35
Find number that when squared gives 1225. 35*35=1225, so sqrt(1225)=35.
square_roots
8,653
arithmetic
easy
What is 829 + 278?
1107
Add the two numbers: 829 + 278 = 1107.
basic_operations
8,654
algebra
medium
Solve for x: x^2 - 7x + 12 = 0
x = 3, 4
Factor: (x - 3)(x - 4) = x^2 -(7)x + 12 = 0. So x = 3 or 4. Check sum = 7, product = 12.
quadratic
8,655
calculus
medium
What is the indefinite integral of x^5 dx?
x^6/6 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^5 = x^6/6 + C.
integral
8,656
word_problems
easy
If you have 80 pencils and you buy 35 more pencils, how many pencils do you have in total?
115
Add initial 80 plus bought 35: 80+35=115.
addition_word
8,657
word_problems
easy
If you have 65 dollars and you buy 22 more dollars, how many dollars do you have in total?
87
Add initial 65 plus bought 22: 65+22=87.
addition_word
8,658
geometry
easy
Find the area of a circle with radius 33. Use pi=3.14159, round to 2 decimals.
3421.19
Area = pi*r^2 = 3.14159*33^2 = 3.14159*1089 = 3421.19.
circle_area
8,659
geometry
easy
Find the circumference of a circle with radius 49. Use pi=3.14159, round to 2 decimals.
307.88
Circumference = 2*pi*r = 2*3.14159*49 = 307.88.
circle_circum
8,660
exponents
easy
What is 3^3?
27
3^3 means multiply 3 by itself 3 times: 3*3*3 = 27.
exponents
8,661
geometry
easy
Find the area of a rectangle with length 15 and width 79.
1185
Area = length * width = 15*79 = 1185.
rectangle_area
8,662
algebra
easy
Solve for x: 19x + 38 = -95
-7
Subtract 38 from both sides: 19x = -95-38=-133. Then divide by 19: x = -133/19 = -7.
linear_equation
8,663
calculus
medium
What is the indefinite integral of x^1 dx?
x^2/2 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^1 = x^2/2 + C.
integral
8,664
roots
easy
What is the square root of 1521?
39
Find number that when squared gives 1521. 39*39=1521, so sqrt(1521)=39.
square_roots
8,665
calculus
medium
What is the indefinite integral of x^2 dx?
x^3/3 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^2 = x^3/3 + C.
integral
8,666
word_problems
easy
If you have 47 apples and you buy 43 more apples, how many apples do you have in total?
90
Add initial 47 plus bought 43: 47+43=90.
addition_word
8,667
fractions
medium
What is 9/14 * 8/18? Give as simplified fraction.
2/7
Multiply numerators: 9*8=72. Denominators: 14*18=252. Simplify by gcd 36 to get 2/7.
fraction_operations
8,668
arithmetic
easy
What is 37 * 38?
1406
Multiply: 37 * 38 = 1406.
basic_operations
8,669
percentages
easy
What is 55% of 737?
405.35
Calculate 55/100 * 737 = 0.55*737 = 405.35.
percentages
8,670
number_theory
medium
What is the GCD (greatest common divisor) of 53 and 16?
1
Find greatest number dividing both 53 and 16. Divisors common, greatest is 1.
gcd
8,671
number_theory
medium
What is the LCM (least common multiple) of 53 and 71?
3763
LCM = |53*71| / GCD(53,71). GCD=1, so LCM=3763/1=3763.
lcm
8,672
algebra
easy
Solve for x: 5x + 39 = 14
-5
Subtract 39 from both sides: 5x = 14-39=-25. Then divide by 5: x = -25/5 = -5.
linear_equation
8,673
arithmetic
easy
What is 990 + 965?
1955
Add the two numbers: 990 + 965 = 1955.
basic_operations
8,674
roots
easy
What is the square root of 1600?
40
Find number that when squared gives 1600. 40*40=1600, so sqrt(1600)=40.
square_roots
8,675
geometry
easy
Find the area of a triangle with base 4 and height 41.
82
Area = 0.5*base*height = 0.5*4*41 = 82.
triangle_area
8,676
percentages
easy
What is 14% of 388?
54.32
Calculate 14/100 * 388 = 0.14*388 = 54.32.
percentages
8,677
arithmetic
easy
What is 724 - 135?
589
Subtract: 724 - 135 = 589.
basic_operations
8,678
exponents
easy
What is 5^3?
125
5^3 means multiply 5 by itself 3 times: 5*5*5 = 125.
exponents
8,679
arithmetic
easy
What is 23 * 84?
1932
Multiply: 23 * 84 = 1932.
basic_operations
8,680
statistics
easy
What is the mean (average) of 69, 53, 82?
68
Mean = sum/count. Sum = 69+53+82=204. Count=3. Mean=204/3=68.0.
mean
8,681
algebra
medium
Solve for x: x^2 + 2x + 1 = 0
x = -1
Factor as (x - -1)^2 = 0, so root is -1 (double root). Sum of roots = -2, product = 1.
quadratic
8,682
word_problems
easy
If you have 50 books and you buy 27 more books, how many books do you have in total?
77
Add initial 50 plus bought 27: 50+27=77.
addition_word
8,683
arithmetic
easy
What is 819 + 826?
1645
Add the two numbers: 819 + 826 = 1645.
basic_operations
8,684
fractions
medium
What is 18/2 + 16/19? Give as simplified fraction.
187/19
Common denominator 2*19=38. 18/2=342/38, 16/19=32/38. Sum = 374/38 = 187/19 simplified.
fraction_operations
8,685
statistics
easy
What is the mean (average) of 98, 7, 51, 54, 10?
44
Mean = sum/count. Sum = 98+7+51+54+10=220. Count=5. Mean=220/5=44.0.
mean
8,686
roots
easy
What is the square root of 2025?
45
Find number that when squared gives 2025. 45*45=2025, so sqrt(2025)=45.
square_roots
8,687
exponents
easy
What is 7^4?
2401
7^4 means multiply 7 by itself 4 times: 7*7*7*7 = 2401.
exponents
8,688
calculus
medium
What is the derivative of 4x^5 with respect to x?
20x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [4x^5] = 4*5*x^4 = 20x^4.
derivative
8,689
number_theory
medium
What is the LCM (least common multiple) of 56 and 42?
168
LCM = |56*42| / GCD(56,42). GCD=14, so LCM=2352/14=168.
lcm
8,690
arithmetic
easy
What is 536 + 953?
1489
Add the two numbers: 536 + 953 = 1489.
basic_operations
8,691
algebra
medium
Solve for x: x^2 + 6x = 0
x = 0, -6
Factor: (x - 0)(x - -6) = x^2 -(-6)x + 0 = 0. So x = 0 or -6. Check sum = -6, product = 0.
quadratic
8,692
arithmetic
easy
What is 91 * 70?
6370
Multiply: 91 * 70 = 6370.
basic_operations
8,693
arithmetic
easy
What is 35 * 50?
1750
Multiply: 35 * 50 = 1750.
basic_operations
8,694
exponents
easy
What is 4^3?
64
4^3 means multiply 4 by itself 3 times: 4*4*4 = 64.
exponents
8,695
exponents
easy
What is 9^2?
81
9^2 means multiply 9 by itself 2 times: 9*9 = 81.
exponents
8,696
roots
easy
What is the square root of 100?
10
Find number that when squared gives 100. 10*10=100, so sqrt(100)=10.
square_roots
8,697
arithmetic
easy
What is 249 + 82?
331
Add the two numbers: 249 + 82 = 331.
basic_operations
8,698
algebra
medium
Solve for x: x^2 - 16x + 63 = 0
x = 9, 7
Factor: (x - 9)(x - 7) = x^2 -(16)x + 63 = 0. So x = 9 or 7. Check sum = 16, product = 63.
quadratic
8,699
word_problems
easy
If you have 16 books and you buy 47 more books, how many books do you have in total?
63
Add initial 16 plus bought 47: 16+47=63.
addition_word
8,700
fractions
medium
What is 6/2 - 7/15? Give as simplified fraction.
38/15
Common denominator 30. Numerator 90-14=76. So 76/30 simplifies to 38/15.
fraction_operations