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
1,701
algebra
medium
Solve for x: x^2 + 8x = 0
x = 0, -8
Factor: (x - 0)(x - -8) = x^2 -(-8)x + 0 = 0. So x = 0 or -8. Check sum = -8, product = 0.
quadratic
1,702
arithmetic
easy
What is 2701 / 37?
73
Divide: 2701 ÷ 37 = 73 because 37*73=2701.
division
1,703
number_theory
medium
What is the LCM (least common multiple) of 71 and 22?
1562
LCM = |71*22| / GCD(71,22). GCD=1, so LCM=1562/1=1562.
lcm
1,704
percentages
easy
What is 75% of 42?
31.5
Calculate 75/100 * 42 = 0.75*42 = 31.5.
percentages
1,705
algebra
easy
Solve for x: 4x + 30 = 106
19
Subtract 30 from both sides: 4x = 106-30=76. Then divide by 4: x = 76/4 = 19.
linear_equation
1,706
calculus
medium
What is the derivative of 3x^8 with respect to x?
24x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^8] = 3*8*x^7 = 24x^7.
derivative
1,707
arithmetic
easy
What is 901 + 499 * 11? Remember order of operations.
6390
Order of operations (PEMDAS): first 499*11=5489, then 901+5489=6390.
basic_operations
1,708
arithmetic
easy
What is 724 - 668?
56
Subtract: 724 - 668 = 56.
basic_operations
1,709
statistics
easy
What is the mean (average) of 17, 27, 19, 82, 35?
36
Mean = sum/count. Sum = 17+27+19+82+35=180. Count=5. Mean=180/5=36.0.
mean
1,710
word_problems
easy
If you have 57 books and you buy 16 more books, how many books do you have in total?
73
Add initial 57 plus bought 16: 57+16=73.
addition_word
1,711
arithmetic
easy
What is 611 - 185?
426
Subtract: 611 - 185 = 426.
basic_operations
1,712
arithmetic
easy
What is 847 - 643?
204
Subtract: 847 - 643 = 204.
basic_operations
1,713
percentages
easy
What is 25% of 121?
30.25
Calculate 25/100 * 121 = 0.25*121 = 30.25.
percentages
1,714
arithmetic
easy
What is 15066 / 81?
186
Divide: 15066 ÷ 81 = 186 because 81*186=15066.
division
1,715
word_problems
easy
If you have 85 books and you buy 43 more books, how many books do you have in total?
128
Add initial 85 plus bought 43: 85+43=128.
addition_word
1,716
geometry
easy
Find the area of a rectangle with length 25 and width 15.
375
Area = length * width = 25*15 = 375.
rectangle_area
1,717
algebra
easy
Solve for x: 16x + 13 = -131
-9
Subtract 13 from both sides: 16x = -131-13=-144. Then divide by 16: x = -144/16 = -9.
linear_equation
1,718
algebra
medium
Solve for x: x^2 + 18x + 81 = 0
x = -9
Factor as (x - -9)^2 = 0, so root is -9 (double root). Sum of roots = -18, product = 81.
quadratic
1,719
number_theory
medium
What is the LCM (least common multiple) of 37 and 27?
999
LCM = |37*27| / GCD(37,27). GCD=1, so LCM=999/1=999.
lcm
1,720
geometry
easy
Find the area of a circle with radius 40. Use pi=3.14159, round to 2 decimals.
5026.55
Area = pi*r^2 = 3.14159*40^2 = 3.14159*1600 = 5026.55.
circle_area
1,721
word_problems
easy
If you have 10 apples and you buy 7 more apples, how many apples do you have in total?
17
Add initial 10 plus bought 7: 10+7=17.
addition_word
1,722
algebra
medium
Solve for x: x^2 + 15x + 50 = 0
x = -5, -10
Factor: (x - -5)(x - -10) = x^2 -(-15)x + 50 = 0. So x = -5 or -10. Check sum = -15, product = 50.
quadratic
1,723
statistics
easy
What is the mean (average) of 15, 10, 31, 93, 57?
41.2
Mean = sum/count. Sum = 15+10+31+93+57=206. Count=5. Mean=206/5=41.2.
mean
1,724
roots
easy
What is the square root of 729?
27
Find number that when squared gives 729. 27*27=729, so sqrt(729)=27.
square_roots
1,725
fractions
medium
What is 11/9 + 4/12? Give as simplified fraction.
14/9
Common denominator 9*12=108. 11/9=132/108, 4/12=36/108. Sum = 168/108 = 14/9 simplified.
fraction_operations
1,726
arithmetic
easy
What is 12096 / 32?
378
Divide: 12096 ÷ 32 = 378 because 32*378=12096.
division
1,727
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
1,728
statistics
easy
What is the mean (average) of 63, 7, 56, 19, 28?
34.6
Mean = sum/count. Sum = 63+7+56+19+28=173. Count=5. Mean=173/5=34.6.
mean
1,729
word_problems
easy
If you have 27 dollars and you buy 25 more dollars, how many dollars do you have in total?
52
Add initial 27 plus bought 25: 27+25=52.
addition_word
1,730
algebra
easy
Solve for x: 15x + 42 = -78
-8
Subtract 42 from both sides: 15x = -78-42=-120. Then divide by 15: x = -120/15 = -8.
linear_equation
1,731
number_theory
medium
What is the LCM (least common multiple) of 35 and 26?
910
LCM = |35*26| / GCD(35,26). GCD=1, so LCM=910/1=910.
lcm
1,732
algebra
easy
Solve for x: 2x + 38 = 70
16
Subtract 38 from both sides: 2x = 70-38=32. Then divide by 2: x = 32/2 = 16.
linear_equation
1,733
arithmetic
easy
What is 288 - 140?
148
Subtract: 288 - 140 = 148.
basic_operations
1,734
algebra
medium
Solve for x: x^2 + 3x = 0
x = 0, -3
Factor: (x - 0)(x - -3) = x^2 -(-3)x + 0 = 0. So x = 0 or -3. Check sum = -3, product = 0.
quadratic
1,735
exponents
easy
What is 11^3?
1331
11^3 means multiply 11 by itself 3 times: 11*11*11 = 1331.
exponents
1,736
algebra
medium
Solve for x: x^2 - 15x + 56 = 0
x = 8, 7
Factor: (x - 8)(x - 7) = x^2 -(15)x + 56 = 0. So x = 8 or 7. Check sum = 15, product = 56.
quadratic
1,737
percentages
easy
What is 12% of 422?
50.64
Calculate 12/100 * 422 = 0.12*422 = 50.64.
percentages
1,738
statistics
easy
What is the mean (average) of 76, 61, 60?
65.67
Mean = sum/count. Sum = 76+61+60=197. Count=3. Mean=197/3=65.67.
mean
1,739
geometry
easy
Find the area of a rectangle with length 94 and width 55.
5170
Area = length * width = 94*55 = 5170.
rectangle_area
1,740
percentages
easy
What is 32% of 336?
107.52
Calculate 32/100 * 336 = 0.32*336 = 107.52.
percentages
1,741
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
1,742
percentages
easy
What is 76% of 969?
736.44
Calculate 76/100 * 969 = 0.76*969 = 736.44.
percentages
1,743
algebra
easy
Solve for x: 19x - 50 = 64
6
Add 50 to both sides: 19x = 64+50=114. Then x = 114/19 = 6.
linear_equation
1,744
arithmetic
easy
What is 5 * 55?
275
Multiply: 5 * 55 = 275.
basic_operations
1,745
statistics
easy
What is the mean (average) of 13, 58, 64, 31, 11?
35.4
Mean = sum/count. Sum = 13+58+64+31+11=177. Count=5. Mean=177/5=35.4.
mean
1,746
arithmetic
easy
What is 710 + 750 * 53? Remember order of operations.
40460
Order of operations (PEMDAS): first 750*53=39750, then 710+39750=40460.
basic_operations
1,747
exponents
easy
What is 5^2?
25
5^2 means multiply 5 by itself 2 times: 5*5 = 25.
exponents
1,748
arithmetic
easy
What is 492 + 686?
1178
Add the two numbers: 492 + 686 = 1178.
basic_operations
1,749
arithmetic
easy
What is 1000 + 466?
1466
Add the two numbers: 1000 + 466 = 1466.
basic_operations
1,750
calculus
medium
What is the derivative of 6x^3 with respect to x?
18x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^3] = 6*3*x^2 = 18x^2.
derivative
1,751
word_problems
easy
If you have 95 apples and you buy 41 more apples, how many apples do you have in total?
136
Add initial 95 plus bought 41: 95+41=136.
addition_word
1,752
arithmetic
easy
What is 915 - 395?
520
Subtract: 915 - 395 = 520.
basic_operations
1,753
exponents
easy
What is 8^4?
4096
8^4 means multiply 8 by itself 4 times: 8*8*8*8 = 4096.
exponents
1,754
fractions
medium
What is 3/12 * 2/18? Give as simplified fraction.
1/36
Multiply numerators: 3*2=6. Denominators: 12*18=216. Simplify by gcd 6 to get 1/36.
fraction_operations
1,755
number_theory
medium
What is the LCM (least common multiple) of 7 and 15?
105
LCM = |7*15| / GCD(7,15). GCD=1, so LCM=105/1=105.
lcm
1,756
number_theory
medium
What is the GCD (greatest common divisor) of 60 and 80?
20
Find greatest number dividing both 60 and 80. Divisors common, greatest is 20.
gcd
1,757
number_theory
medium
What is the GCD (greatest common divisor) of 47 and 23?
1
Find greatest number dividing both 47 and 23. Divisors common, greatest is 1.
gcd
1,758
fractions
medium
What is 5/12 + 8/19? Give as simplified fraction.
191/228
Common denominator 12*19=228. 5/12=95/228, 8/19=96/228. Sum = 191/228 = 191/228 simplified.
fraction_operations
1,759
statistics
easy
What is the mean (average) of 97, 75, 90, 27, 97?
77.2
Mean = sum/count. Sum = 97+75+90+27+97=386. Count=5. Mean=386/5=77.2.
mean
1,760
percentages
easy
What is 42% of 362?
152.04
Calculate 42/100 * 362 = 0.42*362 = 152.04.
percentages
1,761
geometry
easy
Find the area of a triangle with base 88 and height 55.
2420
Area = 0.5*base*height = 0.5*88*55 = 2420.
triangle_area
1,762
geometry
easy
Find the area of a rectangle with length 9 and width 48.
432
Area = length * width = 9*48 = 432.
rectangle_area
1,763
number_theory
medium
What is the GCD (greatest common divisor) of 58 and 63?
1
Find greatest number dividing both 58 and 63. Divisors common, greatest is 1.
gcd
1,764
statistics
easy
What is the mean (average) of 69, 87, 69, 38, 58?
64.2
Mean = sum/count. Sum = 69+87+69+38+58=321. Count=5. Mean=321/5=64.2.
mean
1,765
number_theory
medium
What is the GCD (greatest common divisor) of 87 and 89?
1
Find greatest number dividing both 87 and 89. Divisors common, greatest is 1.
gcd
1,766
fractions
medium
What is 15/4 + 3/14? Give as simplified fraction.
111/28
Common denominator 4*14=56. 15/4=210/56, 3/14=12/56. Sum = 222/56 = 111/28 simplified.
fraction_operations
1,767
exponents
easy
What is 3^2?
9
3^2 means multiply 3 by itself 2 times: 3*3 = 9.
exponents
1,768
algebra
medium
Solve for x: x^2 + 9x + 14 = 0
x = -2, -7
Factor: (x - -2)(x - -7) = x^2 -(-9)x + 14 = 0. So x = -2 or -7. Check sum = -9, product = 14.
quadratic
1,769
algebra
easy
Solve for x: 16x - 31 = -143
-7
Add 31 to both sides: 16x = -143+31=-112. Then x = -112/16 = -7.
linear_equation
1,770
arithmetic
easy
What is 17 * 61?
1037
Multiply: 17 * 61 = 1037.
basic_operations
1,771
word_problems
easy
If you have 99 apples and you buy 42 more apples, how many apples do you have in total?
141
Add initial 99 plus bought 42: 99+42=141.
addition_word
1,772
exponents
easy
What is 5^2?
25
5^2 means multiply 5 by itself 2 times: 5*5 = 25.
exponents
1,773
arithmetic
easy
What is 83 * 43?
3569
Multiply: 83 * 43 = 3569.
basic_operations
1,774
roots
easy
What is the square root of 1764?
42
Find number that when squared gives 1764. 42*42=1764, so sqrt(1764)=42.
square_roots
1,775
roots
easy
What is the square root of 1024?
32
Find number that when squared gives 1024. 32*32=1024, so sqrt(1024)=32.
square_roots
1,776
word_problems
easy
If you have 63 pencils and you buy 20 more pencils, how many pencils do you have in total?
83
Add initial 63 plus bought 20: 63+20=83.
addition_word
1,777
algebra
easy
Solve for x: 10x - 29 = -69
-4
Add 29 to both sides: 10x = -69+29=-40. Then x = -40/10 = -4.
linear_equation
1,778
percentages
easy
What is 62% of 381?
236.22
Calculate 62/100 * 381 = 0.62*381 = 236.22.
percentages
1,779
exponents
easy
What is 2^3?
8
2^3 means multiply 2 by itself 3 times: 2*2*2 = 8.
exponents
1,780
number_theory
medium
What is the GCD (greatest common divisor) of 37 and 59?
1
Find greatest number dividing both 37 and 59. Divisors common, greatest is 1.
gcd
1,781
algebra
medium
Solve for x: x^2 - 6x - 7 = 0
x = 7, -1
Factor: (x - 7)(x - -1) = x^2 -(6)x + -7 = 0. So x = 7 or -1. Check sum = 6, product = -7.
quadratic
1,782
algebra
medium
Solve for x: x^2 + 11x + 30 = 0
x = -5, -6
Factor: (x - -5)(x - -6) = x^2 -(-11)x + 30 = 0. So x = -5 or -6. Check sum = -11, product = 30.
quadratic
1,783
algebra
medium
Solve for x: x^2 + 10x + 21 = 0
x = -3, -7
Factor: (x - -3)(x - -7) = x^2 -(-10)x + 21 = 0. So x = -3 or -7. Check sum = -10, product = 21.
quadratic
1,784
arithmetic
easy
What is 589 + 325 * 17? Remember order of operations.
6114
Order of operations (PEMDAS): first 325*17=5525, then 589+5525=6114.
basic_operations
1,785
algebra
medium
Solve for x: x^2 - 3x - 28 = 0
x = -4, 7
Factor: (x - -4)(x - 7) = x^2 -(3)x + -28 = 0. So x = -4 or 7. Check sum = 3, product = -28.
quadratic
1,786
arithmetic
easy
What is 682 + 325?
1007
Add the two numbers: 682 + 325 = 1007.
basic_operations
1,787
algebra
medium
Solve for x: x^2 - 6x - 7 = 0
x = 7, -1
Factor: (x - 7)(x - -1) = x^2 -(6)x + -7 = 0. So x = 7 or -1. Check sum = 6, product = -7.
quadratic
1,788
arithmetic
easy
What is 1040 / 5?
208
Divide: 1040 ÷ 5 = 208 because 5*208=1040.
division
1,789
word_problems
easy
If you have 45 apples and you buy 10 more apples, how many apples do you have in total?
55
Add initial 45 plus bought 10: 45+10=55.
addition_word
1,790
roots
easy
What is the square root of 1764?
42
Find number that when squared gives 1764. 42*42=1764, so sqrt(1764)=42.
square_roots
1,791
exponents
easy
What is 9^4?
6561
9^4 means multiply 9 by itself 4 times: 9*9*9*9 = 6561.
exponents
1,792
algebra
easy
Solve for x: 19x + 43 = 195
8
Subtract 43 from both sides: 19x = 195-43=152. Then divide by 19: x = 152/19 = 8.
linear_equation
1,793
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
1,794
arithmetic
easy
What is 23370 / 95?
246
Divide: 23370 ÷ 95 = 246 because 95*246=23370.
division
1,795
arithmetic
easy
What is 533 / 41?
13
Divide: 533 ÷ 41 = 13 because 41*13=533.
division
1,796
word_problems
easy
If you have 50 dollars and you buy 6 more dollars, how many dollars do you have in total?
56
Add initial 50 plus bought 6: 50+6=56.
addition_word
1,797
arithmetic
easy
What is 68 * 29?
1972
Multiply: 68 * 29 = 1972.
basic_operations
1,798
geometry
easy
Find the perimeter of a rectangle with length 3 and width 11.
28
Perimeter = 2*(length+width) = 2*(3+11) = 2*14 = 28.
rectangle_perim
1,799
word_problems
easy
If you have 91 apples and you buy 43 more apples, how many apples do you have in total?
134
Add initial 91 plus bought 43: 91+43=134.
addition_word
1,800
calculus
medium
What is the derivative of 8x^3 with respect to x?
24x^2
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^3] = 8*3*x^2 = 24x^2.
derivative