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
10,301
algebra
medium
Solve for x: x^2 + 14x + 45 = 0
x = -5, -9
Factor: (x - -5)(x - -9) = x^2 -(-14)x + 45 = 0. So x = -5 or -9. Check sum = -14, product = 45.
quadratic
10,302
exponents
easy
What is 3^5?
243
3^5 means multiply 3 by itself 5 times: 3*3*3*3*3 = 243.
exponents
10,303
roots
easy
What is the square root of 196?
14
Find number that when squared gives 196. 14*14=196, so sqrt(196)=14.
square_roots
10,304
arithmetic
easy
What is 290 + 969?
1259
Add the two numbers: 290 + 969 = 1259.
basic_operations
10,305
fractions
medium
What is 3/18 + 9/4? Give as simplified fraction.
29/12
Common denominator 18*4=72. 3/18=12/72, 9/4=162/72. Sum = 174/72 = 29/12 simplified.
fraction_operations
10,306
roots
easy
What is the square root of 4?
2
Find number that when squared gives 4. 2*2=4, so sqrt(4)=2.
square_roots
10,307
word_problems
easy
If you have 46 apples and you buy 21 more apples, how many apples do you have in total?
67
Add initial 46 plus bought 21: 46+21=67.
addition_word
10,308
geometry
easy
Find the area of a triangle with base 41 and height 21.
430.5
Area = 0.5*base*height = 0.5*41*21 = 430.5.
triangle_area
10,309
exponents
easy
What is 8^5?
32768
8^5 means multiply 8 by itself 5 times: 8*8*8*8*8 = 32768.
exponents
10,310
word_problems
easy
If you have 12 candies and you buy 15 more candies, how many candies do you have in total?
27
Add initial 12 plus bought 15: 12+15=27.
addition_word
10,311
geometry
easy
Find the circumference of a circle with radius 29. Use pi=3.14159, round to 2 decimals.
182.21
Circumference = 2*pi*r = 2*3.14159*29 = 182.21.
circle_circum
10,312
statistics
easy
What is the mean (average) of 94, 1, 72?
55.67
Mean = sum/count. Sum = 94+1+72=167. Count=3. Mean=167/3=55.67.
mean
10,313
percentages
easy
What is 4% of 667?
26.68
Calculate 4/100 * 667 = 0.04*667 = 26.68.
percentages
10,314
word_problems
easy
If you have 55 dollars and you buy 18 more dollars, how many dollars do you have in total?
73
Add initial 55 plus bought 18: 55+18=73.
addition_word
10,315
arithmetic
easy
What is 348 + 957?
1305
Add the two numbers: 348 + 957 = 1305.
basic_operations
10,316
arithmetic
easy
What is 510 + 87 * 21? Remember order of operations.
2337
Order of operations (PEMDAS): first 87*21=1827, then 510+1827=2337.
basic_operations
10,317
word_problems
easy
If you have 36 books and you buy 47 more books, how many books do you have in total?
83
Add initial 36 plus bought 47: 36+47=83.
addition_word
10,318
algebra
medium
Solve for x: x^2 + 2x - 80 = 0
x = 8, -10
Factor: (x - 8)(x - -10) = x^2 -(-2)x + -80 = 0. So x = 8 or -10. Check sum = -2, product = -80.
quadratic
10,319
arithmetic
easy
What is 25290 / 90?
281
Divide: 25290 ÷ 90 = 281 because 90*281=25290.
division
10,320
arithmetic
easy
What is 370 + 111 * 12? Remember order of operations.
1702
Order of operations (PEMDAS): first 111*12=1332, then 370+1332=1702.
basic_operations
10,321
fractions
medium
What is 9/2 - 14/8? Give as simplified fraction.
11/4
Common denominator 16. Numerator 72-28=44. So 44/16 simplifies to 11/4.
fraction_operations
10,322
arithmetic
easy
What is 6 + 47 * 80? Remember order of operations.
3766
Order of operations (PEMDAS): first 47*80=3760, then 6+3760=3766.
basic_operations
10,323
exponents
easy
What is 2^5?
32
2^5 means multiply 2 by itself 5 times: 2*2*2*2*2 = 32.
exponents
10,324
roots
easy
What is the square root of 25?
5
Find number that when squared gives 25. 5*5=25, so sqrt(25)=5.
square_roots
10,325
arithmetic
easy
What is 35 * 61?
2135
Multiply: 35 * 61 = 2135.
basic_operations
10,326
arithmetic
easy
What is 472 + 51 * 86? Remember order of operations.
4858
Order of operations (PEMDAS): first 51*86=4386, then 472+4386=4858.
basic_operations
10,327
number_theory
medium
What is the LCM (least common multiple) of 57 and 73?
4161
LCM = |57*73| / GCD(57,73). GCD=1, so LCM=4161/1=4161.
lcm
10,328
calculus
medium
What is the derivative of 2x^3 with respect to x?
6x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^3] = 2*3*x^2 = 6x^2.
derivative
10,329
algebra
medium
Solve for x: x^2 + 11x + 18 = 0
x = -2, -9
Factor: (x - -2)(x - -9) = x^2 -(-11)x + 18 = 0. So x = -2 or -9. Check sum = -11, product = 18.
quadratic
10,330
word_problems
easy
If you have 99 pencils and you buy 43 more pencils, how many pencils do you have in total?
142
Add initial 99 plus bought 43: 99+43=142.
addition_word
10,331
arithmetic
easy
What is 88 * 11?
968
Multiply: 88 * 11 = 968.
basic_operations
10,332
arithmetic
easy
What is 2400 / 75?
32
Divide: 2400 ÷ 75 = 32 because 75*32=2400.
division
10,333
geometry
easy
Find the area of a circle with radius 45. Use pi=3.14159, round to 2 decimals.
6361.73
Area = pi*r^2 = 3.14159*45^2 = 3.14159*2025 = 6361.73.
circle_area
10,334
calculus
medium
What is the indefinite integral of x^4 dx?
x^5/5 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^4 = x^5/5 + C.
integral
10,335
calculus
medium
What is the derivative of 8x^5 with respect to x?
40x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^5] = 8*5*x^4 = 40x^4.
derivative
10,336
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
10,337
roots
easy
What is the square root of 81?
9
Find number that when squared gives 81. 9*9=81, so sqrt(81)=9.
square_roots
10,338
geometry
easy
Find the area of a triangle with base 52 and height 95.
2470
Area = 0.5*base*height = 0.5*52*95 = 2470.
triangle_area
10,339
arithmetic
easy
What is 20 * 13?
260
Multiply: 20 * 13 = 260.
basic_operations
10,340
exponents
easy
What is 7^2?
49
7^2 means multiply 7 by itself 2 times: 7*7 = 49.
exponents
10,341
statistics
easy
What is the mean (average) of 98, 6, 17, 20?
35.25
Mean = sum/count. Sum = 98+6+17+20=141. Count=4. Mean=141/4=35.25.
mean
10,342
fractions
medium
What is 18/2 + 9/13? Give as simplified fraction.
126/13
Common denominator 2*13=26. 18/2=234/26, 9/13=18/26. Sum = 252/26 = 126/13 simplified.
fraction_operations
10,343
exponents
easy
What is 9^3?
729
9^3 means multiply 9 by itself 3 times: 9*9*9 = 729.
exponents
10,344
word_problems
easy
If you have 63 books and you buy 43 more books, how many books do you have in total?
106
Add initial 63 plus bought 43: 63+43=106.
addition_word
10,345
roots
easy
What is the square root of 169?
13
Find number that when squared gives 169. 13*13=169, so sqrt(169)=13.
square_roots
10,346
algebra
easy
Solve for x: 2x + 29 = 33
2
Subtract 29 from both sides: 2x = 33-29=4. Then divide by 2: x = 4/2 = 2.
linear_equation
10,347
algebra
medium
Solve for x: x^2 - 5x - 14 = 0
x = 7, -2
Factor: (x - 7)(x - -2) = x^2 -(5)x + -14 = 0. So x = 7 or -2. Check sum = 5, product = -14.
quadratic
10,348
statistics
easy
What is the mean (average) of 47, 91, 65?
67.67
Mean = sum/count. Sum = 47+91+65=203. Count=3. Mean=203/3=67.67.
mean
10,349
statistics
easy
What is the mean (average) of 59, 22, 80?
53.67
Mean = sum/count. Sum = 59+22+80=161. Count=3. Mean=161/3=53.67.
mean
10,350
fractions
medium
What is 7/12 + 16/2? Give as simplified fraction.
103/12
Common denominator 12*2=24. 7/12=14/24, 16/2=192/24. Sum = 206/24 = 103/12 simplified.
fraction_operations
10,351
geometry
easy
Find the area of a rectangle with length 79 and width 32.
2528
Area = length * width = 79*32 = 2528.
rectangle_area
10,352
calculus
medium
What is the derivative of 7x^7 with respect to x?
49x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^7] = 7*7*x^6 = 49x^6.
derivative
10,353
fractions
medium
What is 20/18 - 10/14? Give as simplified fraction.
25/63
Common denominator 252. Numerator 280-180=100. So 100/252 simplifies to 25/63.
fraction_operations
10,354
exponents
easy
What is 6^3?
216
6^3 means multiply 6 by itself 3 times: 6*6*6 = 216.
exponents
10,355
word_problems
easy
If you have 36 pencils and you buy 38 more pencils, how many pencils do you have in total?
74
Add initial 36 plus bought 38: 36+38=74.
addition_word
10,356
percentages
easy
What is 41% of 741?
303.81
Calculate 41/100 * 741 = 0.41*741 = 303.81.
percentages
10,357
calculus
medium
What is the derivative of 6x^8 with respect to x?
48x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^8] = 6*8*x^7 = 48x^7.
derivative
10,358
algebra
easy
Solve for x: 8x + 27 = -101
-16
Subtract 27 from both sides: 8x = -101-27=-128. Then divide by 8: x = -128/8 = -16.
linear_equation
10,359
calculus
medium
What is the indefinite integral of x^6 dx?
x^7/7 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^6 = x^7/7 + C.
integral
10,360
word_problems
easy
If you have 56 books and you buy 11 more books, how many books do you have in total?
67
Add initial 56 plus bought 11: 56+11=67.
addition_word
10,361
statistics
easy
What is the mean (average) of 43, 29, 31?
34.33
Mean = sum/count. Sum = 43+29+31=103. Count=3. Mean=103/3=34.33.
mean
10,362
exponents
easy
What is 2^5?
32
2^5 means multiply 2 by itself 5 times: 2*2*2*2*2 = 32.
exponents
10,363
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
10,364
calculus
medium
What is the indefinite integral of x^4 dx?
x^5/5 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^4 = x^5/5 + C.
integral
10,365
fractions
medium
What is 8/10 - 2/5? Give as simplified fraction.
2/5
Common denominator 50. Numerator 40-20=20. So 20/50 simplifies to 2/5.
fraction_operations
10,366
algebra
easy
Solve for x: 3x - 3 = 12
5
Add 3 to both sides: 3x = 12+3=15. Then x = 15/3 = 5.
linear_equation
10,367
fractions
medium
What is 9/12 + 6/15? Give as simplified fraction.
23/20
Common denominator 12*15=180. 9/12=135/180, 6/15=72/180. Sum = 207/180 = 23/20 simplified.
fraction_operations
10,368
calculus
medium
What is the derivative of 9x^3 with respect to x?
27x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^3] = 9*3*x^2 = 27x^2.
derivative
10,369
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
10,370
fractions
medium
What is 7/13 - 15/3? Give as simplified fraction.
-58/13
Common denominator 39. Numerator 21-195=-174. So -174/39 simplifies to -58/13.
fraction_operations
10,371
geometry
easy
Find the area of a circle with radius 24. Use pi=3.14159, round to 2 decimals.
1809.56
Area = pi*r^2 = 3.14159*24^2 = 3.14159*576 = 1809.56.
circle_area
10,372
number_theory
medium
What is the LCM (least common multiple) of 92 and 16?
368
LCM = |92*16| / GCD(92,16). GCD=4, so LCM=1472/4=368.
lcm
10,373
fractions
medium
What is 9/11 + 5/4? Give as simplified fraction.
91/44
Common denominator 11*4=44. 9/11=36/44, 5/4=55/44. Sum = 91/44 = 91/44 simplified.
fraction_operations
10,374
arithmetic
easy
What is 10614 / 61?
174
Divide: 10614 ÷ 61 = 174 because 61*174=10614.
division
10,375
exponents
easy
What is 11^4?
14641
11^4 means multiply 11 by itself 4 times: 11*11*11*11 = 14641.
exponents
10,376
statistics
easy
What is the mean (average) of 37, 22, 98, 11, 81?
49.8
Mean = sum/count. Sum = 37+22+98+11+81=249. Count=5. Mean=249/5=49.8.
mean
10,377
exponents
easy
What is 4^4?
256
4^4 means multiply 4 by itself 4 times: 4*4*4*4 = 256.
exponents
10,378
calculus
medium
What is the derivative of 9x^3 with respect to x?
27x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^3] = 9*3*x^2 = 27x^2.
derivative
10,379
arithmetic
easy
What is 1872 / 48?
39
Divide: 1872 ÷ 48 = 39 because 48*39=1872.
division
10,380
arithmetic
easy
What is 7609 divided by 54? Give answer to 2 decimal places.
140.91
Calculate 7609/ 54 = 140.9074, rounded to 2 decimals is 140.91.
division
10,381
algebra
medium
Solve for x: x^2 - 4 = 0
x = -2, 2
Factor: (x - -2)(x - 2) = x^2 -(0)x + -4 = 0. So x = -2 or 2. Check sum = 0, product = -4.
quadratic
10,382
exponents
easy
What is 4^5?
1024
4^5 means multiply 4 by itself 5 times: 4*4*4*4*4 = 1024.
exponents
10,383
algebra
medium
Solve for x: x^2 - 2x - 8 = 0
x = -2, 4
Factor: (x - -2)(x - 4) = x^2 -(2)x + -8 = 0. So x = -2 or 4. Check sum = 2, product = -8.
quadratic
10,384
fractions
medium
What is 11/8 - 20/18? Give as simplified fraction.
19/72
Common denominator 144. Numerator 198-160=38. So 38/144 simplifies to 19/72.
fraction_operations
10,385
number_theory
medium
What is the GCD (greatest common divisor) of 98 and 83?
1
Find greatest number dividing both 98 and 83. Divisors common, greatest is 1.
gcd
10,386
number_theory
medium
What is the GCD (greatest common divisor) of 31 and 1?
1
Find greatest number dividing both 31 and 1. Divisors common, greatest is 1.
gcd
10,387
word_problems
easy
If you have 45 dollars and you buy 8 more dollars, how many dollars do you have in total?
53
Add initial 45 plus bought 8: 45+8=53.
addition_word
10,388
number_theory
medium
What is the GCD (greatest common divisor) of 84 and 10?
2
Find greatest number dividing both 84 and 10. Divisors common, greatest is 2.
gcd
10,389
geometry
easy
Find the circumference of a circle with radius 37. Use pi=3.14159, round to 2 decimals.
232.48
Circumference = 2*pi*r = 2*3.14159*37 = 232.48.
circle_circum
10,390
algebra
medium
Solve for x: x^2 + 12x + 27 = 0
x = -3, -9
Factor: (x - -3)(x - -9) = x^2 -(-12)x + 27 = 0. So x = -3 or -9. Check sum = -12, product = 27.
quadratic
10,391
roots
easy
What is the square root of 900?
30
Find number that when squared gives 900. 30*30=900, so sqrt(900)=30.
square_roots
10,392
algebra
medium
Solve for x: x^2 + 2x = 0
x = -2, 0
Factor: (x - -2)(x - 0) = x^2 -(-2)x + 0 = 0. So x = -2 or 0. Check sum = -2, product = 0.
quadratic
10,393
fractions
medium
What is 3/2 + 17/4? Give as simplified fraction.
23/4
Common denominator 2*4=8. 3/2=12/8, 17/4=34/8. Sum = 46/8 = 23/4 simplified.
fraction_operations
10,394
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
10,395
percentages
easy
What is 96% of 490?
470.4
Calculate 96/100 * 490 = 0.96*490 = 470.4.
percentages
10,396
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
10,397
fractions
medium
What is 2/4 + 9/15? Give as simplified fraction.
11/10
Common denominator 4*15=60. 2/4=30/60, 9/15=36/60. Sum = 66/60 = 11/10 simplified.
fraction_operations
10,398
calculus
medium
What is the indefinite integral of x^4 dx?
x^5/5 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^4 = x^5/5 + C.
integral
10,399
calculus
medium
What is the derivative of 1x^2 with respect to x?
2x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^2] = 1*2*x^1 = 2x.
derivative
10,400
calculus
medium
What is the derivative of 10x^8 with respect to x?
80x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [10x^8] = 10*8*x^7 = 80x^7.
derivative