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
8,001
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
8,002
percentages
easy
What is 7% of 807?
56.49
Calculate 7/100 * 807 = 0.07*807 = 56.49.
percentages
8,003
algebra
easy
Solve for x: 7x + 28 = 147
17
Subtract 28 from both sides: 7x = 147-28=119. Then divide by 7: x = 119/7 = 17.
linear_equation
8,004
percentages
easy
What is 33% of 287?
94.71
Calculate 33/100 * 287 = 0.33*287 = 94.71.
percentages
8,005
calculus
medium
What is the derivative of 7x^2 with respect to x?
14x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^2] = 7*2*x^1 = 14x.
derivative
8,006
arithmetic
easy
What is 34 + 91 * 49? Remember order of operations.
4493
Order of operations (PEMDAS): first 91*49=4459, then 34+4459=4493.
basic_operations
8,007
arithmetic
easy
What is 17 * 25?
425
Multiply: 17 * 25 = 425.
basic_operations
8,008
calculus
medium
What is the derivative of 3x^4 with respect to x?
12x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^4] = 3*4*x^3 = 12x^3.
derivative
8,009
exponents
easy
What is 3^3?
27
3^3 means multiply 3 by itself 3 times: 3*3*3 = 27.
exponents
8,010
roots
easy
What is the square root of 256?
16
Find number that when squared gives 256. 16*16=256, so sqrt(256)=16.
square_roots
8,011
statistics
easy
What is the mean (average) of 7, 5, 49, 34, 33?
25.6
Mean = sum/count. Sum = 7+5+49+34+33=128. Count=5. Mean=128/5=25.6.
mean
8,012
roots
easy
What is the square root of 361?
19
Find number that when squared gives 361. 19*19=361, so sqrt(361)=19.
square_roots
8,013
statistics
easy
What is the mean (average) of 32, 14, 15, 75?
34
Mean = sum/count. Sum = 32+14+15+75=136. Count=4. Mean=136/4=34.0.
mean
8,014
arithmetic
easy
What is 263 - 171?
92
Subtract: 263 - 171 = 92.
basic_operations
8,015
algebra
easy
Solve for x: 17x - 50 = -50
0
Add 50 to both sides: 17x = -50+50=0. Then x = 0/17 = 0.
linear_equation
8,016
percentages
easy
What is 57% of 421?
239.97
Calculate 57/100 * 421 = 0.57*421 = 239.97.
percentages
8,017
exponents
easy
What is 4^4?
256
4^4 means multiply 4 by itself 4 times: 4*4*4*4 = 256.
exponents
8,018
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
8,019
statistics
easy
What is the mean (average) of 55, 71, 68, 82, 58?
66.8
Mean = sum/count. Sum = 55+71+68+82+58=334. Count=5. Mean=334/5=66.8.
mean
8,020
calculus
medium
What is the derivative of 3x^2 with respect to x?
6x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^2] = 3*2*x^1 = 6x.
derivative
8,021
arithmetic
easy
What is 235 + 740 * 76? Remember order of operations.
56475
Order of operations (PEMDAS): first 740*76=56240, then 235+56240=56475.
basic_operations
8,022
percentages
easy
What is 10% of 940?
94
Calculate 10/100 * 940 = 0.1*940 = 94.
percentages
8,023
statistics
easy
What is the mean (average) of 12, 80, 92?
61.33
Mean = sum/count. Sum = 12+80+92=184. Count=3. Mean=184/3=61.33.
mean
8,024
roots
easy
What is the square root of 1296?
36
Find number that when squared gives 1296. 36*36=1296, so sqrt(1296)=36.
square_roots
8,025
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
8,026
algebra
easy
Solve for x: 18x + 10 = 298
16
Subtract 10 from both sides: 18x = 298-10=288. Then divide by 18: x = 288/18 = 16.
linear_equation
8,027
statistics
easy
What is the mean (average) of 67, 64, 26?
52.33
Mean = sum/count. Sum = 67+64+26=157. Count=3. Mean=157/3=52.33.
mean
8,028
arithmetic
easy
What is 821 - 258?
563
Subtract: 821 - 258 = 563.
basic_operations
8,029
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
8,030
arithmetic
easy
What is 29121 divided by 62? Give answer to 2 decimal places.
469.69
Calculate 29121/ 62 = 469.6935, rounded to 2 decimals is 469.69.
division
8,031
exponents
easy
What is 6^2?
36
6^2 means multiply 6 by itself 2 times: 6*6 = 36.
exponents
8,032
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
8,033
percentages
easy
What is 25% of 779?
194.75
Calculate 25/100 * 779 = 0.25*779 = 194.75.
percentages
8,034
algebra
medium
Solve for x: x^2 - 14x + 49 = 0
x = 7
Factor as (x - 7)^2 = 0, so root is 7 (double root). Sum of roots = 14, product = 49.
quadratic
8,035
arithmetic
easy
What is 483 + 5 * 3? Remember order of operations.
498
Order of operations (PEMDAS): first 5*3=15, then 483+15=498.
basic_operations
8,036
arithmetic
easy
What is 540 - 184?
356
Subtract: 540 - 184 = 356.
basic_operations
8,037
arithmetic
easy
What is 154 + 962?
1116
Add the two numbers: 154 + 962 = 1116.
basic_operations
8,038
arithmetic
easy
What is 741 + 85 * 63? Remember order of operations.
6096
Order of operations (PEMDAS): first 85*63=5355, then 741+5355=6096.
basic_operations
8,039
geometry
easy
Find the area of a rectangle with length 51 and width 36.
1836
Area = length * width = 51*36 = 1836.
rectangle_area
8,040
statistics
easy
What is the mean (average) of 18, 85, 90, 9, 8?
42
Mean = sum/count. Sum = 18+85+90+9+8=210. Count=5. Mean=210/5=42.0.
mean
8,041
geometry
easy
Find the circumference of a circle with radius 27. Use pi=3.14159, round to 2 decimals.
169.65
Circumference = 2*pi*r = 2*3.14159*27 = 169.65.
circle_circum
8,042
algebra
easy
Solve for x: 15x - 10 = -295
-19
Add 10 to both sides: 15x = -295+10=-285. Then x = -285/15 = -19.
linear_equation
8,043
arithmetic
easy
What is 4162 divided by 47? Give answer to 2 decimal places.
88.55
Calculate 4162/ 47 = 88.5532, rounded to 2 decimals is 88.55.
division
8,044
geometry
easy
Find the area of a circle with radius 11. Use pi=3.14159, round to 2 decimals.
380.13
Area = pi*r^2 = 3.14159*11^2 = 3.14159*121 = 380.13.
circle_area
8,045
arithmetic
easy
What is 889 + 236 * 93? Remember order of operations.
22837
Order of operations (PEMDAS): first 236*93=21948, then 889+21948=22837.
basic_operations
8,046
roots
easy
What is the square root of 361?
19
Find number that when squared gives 361. 19*19=361, so sqrt(361)=19.
square_roots
8,047
fractions
medium
What is 7/2 * 19/13? Give as simplified fraction.
133/26
Multiply numerators: 7*19=133. Denominators: 2*13=26. Simplify by gcd 1 to get 133/26.
fraction_operations
8,048
statistics
easy
What is the mean (average) of 31, 89, 72?
64
Mean = sum/count. Sum = 31+89+72=192. Count=3. Mean=192/3=64.0.
mean
8,049
fractions
medium
What is 13/19 + 1/15? Give as simplified fraction.
214/285
Common denominator 19*15=285. 13/19=195/285, 1/15=19/285. Sum = 214/285 = 214/285 simplified.
fraction_operations
8,050
arithmetic
easy
What is 886 - 266?
620
Subtract: 886 - 266 = 620.
basic_operations
8,051
algebra
easy
Solve for x: 8x - 33 = 7
5
Add 33 to both sides: 8x = 7+33=40. Then x = 40/8 = 5.
linear_equation
8,052
statistics
easy
What is the mean (average) of 35, 95, 85?
71.67
Mean = sum/count. Sum = 35+95+85=215. Count=3. Mean=215/3=71.67.
mean
8,053
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
8,054
arithmetic
easy
What is 26325 / 81?
325
Divide: 26325 ÷ 81 = 325 because 81*325=26325.
division
8,055
arithmetic
easy
What is 1104 / 48?
23
Divide: 1104 ÷ 48 = 23 because 48*23=1104.
division
8,056
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
8,057
statistics
easy
What is the mean (average) of 17, 4, 80, 17, 45?
32.6
Mean = sum/count. Sum = 17+4+80+17+45=163. Count=5. Mean=163/5=32.6.
mean
8,058
arithmetic
easy
What is 586 + 134?
720
Add the two numbers: 586 + 134 = 720.
basic_operations
8,059
algebra
easy
Solve for x: 18x + 42 = 78
2
Subtract 42 from both sides: 18x = 78-42=36. Then divide by 18: x = 36/18 = 2.
linear_equation
8,060
algebra
easy
Solve for x: 8x - 21 = -109
-11
Add 21 to both sides: 8x = -109+21=-88. Then x = -88/8 = -11.
linear_equation
8,061
word_problems
easy
If you have 5 pencils and you buy 18 more pencils, how many pencils do you have in total?
23
Add initial 5 plus bought 18: 5+18=23.
addition_word
8,062
fractions
medium
What is 16/20 + 11/18? Give as simplified fraction.
127/90
Common denominator 20*18=360. 16/20=288/360, 11/18=220/360. Sum = 508/360 = 127/90 simplified.
fraction_operations
8,063
arithmetic
easy
What is 12375 / 45?
275
Divide: 12375 ÷ 45 = 275 because 45*275=12375.
division
8,064
roots
easy
What is the square root of 64?
8
Find number that when squared gives 64. 8*8=64, so sqrt(64)=8.
square_roots
8,065
arithmetic
easy
What is 83 + 57 * 28? Remember order of operations.
1679
Order of operations (PEMDAS): first 57*28=1596, then 83+1596=1679.
basic_operations
8,066
algebra
medium
Solve for x: x^2 + 6x - 40 = 0
x = -10, 4
Factor: (x - -10)(x - 4) = x^2 -(-6)x + -40 = 0. So x = -10 or 4. Check sum = -6, product = -40.
quadratic
8,067
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
8,068
exponents
easy
What is 3^4?
81
3^4 means multiply 3 by itself 4 times: 3*3*3*3 = 81.
exponents
8,069
algebra
medium
Solve for x: x^2 - 6x - 7 = 0
x = -1, 7
Factor: (x - -1)(x - 7) = x^2 -(6)x + -7 = 0. So x = -1 or 7. Check sum = 6, product = -7.
quadratic
8,070
word_problems
easy
If you have 35 candies and you buy 38 more candies, how many candies do you have in total?
73
Add initial 35 plus bought 38: 35+38=73.
addition_word
8,071
algebra
medium
Solve for x: x^2 + 4x - 12 = 0
x = 2, -6
Factor: (x - 2)(x - -6) = x^2 -(-4)x + -12 = 0. So x = 2 or -6. Check sum = -4, product = -12.
quadratic
8,072
number_theory
medium
What is the GCD (greatest common divisor) of 77 and 11?
11
Find greatest number dividing both 77 and 11. Divisors common, greatest is 11.
gcd
8,073
arithmetic
easy
What is 61 * 94?
5734
Multiply: 61 * 94 = 5734.
basic_operations
8,074
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
8,075
word_problems
easy
If you have 66 dollars and you buy 11 more dollars, how many dollars do you have in total?
77
Add initial 66 plus bought 11: 66+11=77.
addition_word
8,076
exponents
easy
What is 5^4?
625
5^4 means multiply 5 by itself 4 times: 5*5*5*5 = 625.
exponents
8,077
fractions
medium
What is 11/11 * 20/16? Give as simplified fraction.
5/4
Multiply numerators: 11*20=220. Denominators: 11*16=176. Simplify by gcd 44 to get 5/4.
fraction_operations
8,078
statistics
easy
What is the mean (average) of 78, 49, 47?
58
Mean = sum/count. Sum = 78+49+47=174. Count=3. Mean=174/3=58.0.
mean
8,079
statistics
easy
What is the mean (average) of 44, 52, 97?
64.33
Mean = sum/count. Sum = 44+52+97=193. Count=3. Mean=193/3=64.33.
mean
8,080
exponents
easy
What is 5^2?
25
5^2 means multiply 5 by itself 2 times: 5*5 = 25.
exponents
8,081
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
8,082
arithmetic
easy
What is 826 - 782?
44
Subtract: 826 - 782 = 44.
basic_operations
8,083
arithmetic
easy
What is 657 - 304?
353
Subtract: 657 - 304 = 353.
basic_operations
8,084
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
8,085
arithmetic
easy
What is 739 + 52 * 73? Remember order of operations.
4535
Order of operations (PEMDAS): first 52*73=3796, then 739+3796=4535.
basic_operations
8,086
arithmetic
easy
What is 716 + 430 * 46? Remember order of operations.
20496
Order of operations (PEMDAS): first 430*46=19780, then 716+19780=20496.
basic_operations
8,087
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
8,088
exponents
easy
What is 4^5?
1024
4^5 means multiply 4 by itself 5 times: 4*4*4*4*4 = 1024.
exponents
8,089
calculus
medium
What is the derivative of 3x^7 with respect to x?
21x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^7] = 3*7*x^6 = 21x^6.
derivative
8,090
algebra
easy
Solve for x: 12x - 17 = 199
18
Add 17 to both sides: 12x = 199+17=216. Then x = 216/12 = 18.
linear_equation
8,091
algebra
easy
Solve for x: 2x - 22 = -10
6
Add 22 to both sides: 2x = -10+22=12. Then x = 12/2 = 6.
linear_equation
8,092
percentages
easy
What is 7% of 610?
42.7
Calculate 7/100 * 610 = 0.07*610 = 42.7.
percentages
8,093
arithmetic
easy
What is 8 * 13?
104
Multiply: 8 * 13 = 104.
basic_operations
8,094
algebra
easy
Solve for x: 15x - 20 = -230
-14
Add 20 to both sides: 15x = -230+20=-210. Then x = -210/15 = -14.
linear_equation
8,095
arithmetic
easy
What is 23128 / 98?
236
Divide: 23128 ÷ 98 = 236 because 98*236=23128.
division
8,096
calculus
medium
What is the derivative of 2x^4 with respect to x?
8x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^4] = 2*4*x^3 = 8x^3.
derivative
8,097
geometry
easy
Find the circumference of a circle with radius 22. Use pi=3.14159, round to 2 decimals.
138.23
Circumference = 2*pi*r = 2*3.14159*22 = 138.23.
circle_circum
8,098
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
8,099
arithmetic
easy
What is 900 + 12?
912
Add the two numbers: 900 + 12 = 912.
basic_operations
8,100
algebra
easy
Solve for x: 20x - 22 = -162
-7
Add 22 to both sides: 20x = -162+22=-140. Then x = -140/20 = -7.
linear_equation