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
2,601
number_theory
medium
What is the LCM (least common multiple) of 55 and 24?
1320
LCM = |55*24| / GCD(55,24). GCD=1, so LCM=1320/1=1320.
lcm
2,602
arithmetic
easy
What is 19600 divided by 58? Give answer to 2 decimal places.
337.93
Calculate 19600/ 58 = 337.9310, rounded to 2 decimals is 337.93.
division
2,603
algebra
medium
Solve for x: x^2 + 5x - 6 = 0
x = -6, 1
Factor: (x - -6)(x - 1) = x^2 -(-5)x + -6 = 0. So x = -6 or 1. Check sum = -5, product = -6.
quadratic
2,604
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
2,605
number_theory
medium
What is the GCD (greatest common divisor) of 91 and 26?
13
Find greatest number dividing both 91 and 26. Divisors common, greatest is 13.
gcd
2,606
fractions
medium
What is 10/3 - 5/14? Give as simplified fraction.
125/42
Common denominator 42. Numerator 140-15=125. So 125/42 simplifies to 125/42.
fraction_operations
2,607
roots
easy
What is the square root of 9?
3
Find number that when squared gives 9. 3*3=9, so sqrt(9)=3.
square_roots
2,608
algebra
medium
Solve for x: x^2 - 1x - 20 = 0
x = -4, 5
Factor: (x - -4)(x - 5) = x^2 -(1)x + -20 = 0. So x = -4 or 5. Check sum = 1, product = -20.
quadratic
2,609
geometry
easy
Find the area of a rectangle with length 54 and width 63.
3402
Area = length * width = 54*63 = 3402.
rectangle_area
2,610
statistics
easy
What is the mean (average) of 92, 17, 42, 97, 98?
69.2
Mean = sum/count. Sum = 92+17+42+97+98=346. Count=5. Mean=346/5=69.2.
mean
2,611
calculus
medium
What is the derivative of 7x^6 with respect to x?
42x^5
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^6] = 7*6*x^5 = 42x^5.
derivative
2,612
algebra
easy
Solve for x: 4x - 37 = -113
-19
Add 37 to both sides: 4x = -113+37=-76. Then x = -76/4 = -19.
linear_equation
2,613
algebra
easy
Solve for x: 5x - 6 = 54
12
Add 6 to both sides: 5x = 54+6=60. Then x = 60/5 = 12.
linear_equation
2,614
arithmetic
easy
What is 786 + 701?
1487
Add the two numbers: 786 + 701 = 1487.
basic_operations
2,615
roots
easy
What is the square root of 784?
28
Find number that when squared gives 784. 28*28=784, so sqrt(784)=28.
square_roots
2,616
arithmetic
easy
What is 492 - 445?
47
Subtract: 492 - 445 = 47.
basic_operations
2,617
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
2,618
algebra
easy
Solve for x: 17x - 27 = -112
-5
Add 27 to both sides: 17x = -112+27=-85. Then x = -85/17 = -5.
linear_equation
2,619
geometry
easy
Find the area of a rectangle with length 34 and width 90.
3060
Area = length * width = 34*90 = 3060.
rectangle_area
2,620
percentages
easy
What is 86% of 841?
723.26
Calculate 86/100 * 841 = 0.86*841 = 723.26.
percentages
2,621
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
2,622
statistics
easy
What is the mean (average) of 14, 90, 94, 65, 79?
68.4
Mean = sum/count. Sum = 14+90+94+65+79=342. Count=5. Mean=342/5=68.4.
mean
2,623
algebra
medium
Solve for x: x^2 - 4x - 32 = 0
x = -4, 8
Factor: (x - -4)(x - 8) = x^2 -(4)x + -32 = 0. So x = -4 or 8. Check sum = 4, product = -32.
quadratic
2,624
algebra
easy
Solve for x: 8x - 35 = -131
-12
Add 35 to both sides: 8x = -131+35=-96. Then x = -96/8 = -12.
linear_equation
2,625
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
2,626
fractions
medium
What is 5/15 + 1/8? Give as simplified fraction.
11/24
Common denominator 15*8=120. 5/15=40/120, 1/8=15/120. Sum = 55/120 = 11/24 simplified.
fraction_operations
2,627
arithmetic
easy
What is 418 - 390?
28
Subtract: 418 - 390 = 28.
basic_operations
2,628
percentages
easy
What is 29% of 345?
100.05
Calculate 29/100 * 345 = 0.29*345 = 100.05.
percentages
2,629
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
2,630
arithmetic
easy
What is 523 + 438?
961
Add the two numbers: 523 + 438 = 961.
basic_operations
2,631
geometry
easy
Find the area of a circle with radius 18. Use pi=3.14159, round to 2 decimals.
1017.88
Area = pi*r^2 = 3.14159*18^2 = 3.14159*324 = 1017.88.
circle_area
2,632
number_theory
medium
What is the GCD (greatest common divisor) of 92 and 54?
2
Find greatest number dividing both 92 and 54. Divisors common, greatest is 2.
gcd
2,633
roots
easy
What is the square root of 16?
4
Find number that when squared gives 16. 4*4=16, so sqrt(16)=4.
square_roots
2,634
algebra
medium
Solve for x: x^2 + 19x + 90 = 0
x = -9, -10
Factor: (x - -9)(x - -10) = x^2 -(-19)x + 90 = 0. So x = -9 or -10. Check sum = -19, product = 90.
quadratic
2,635
arithmetic
easy
What is 677 + 763 * 42? Remember order of operations.
32723
Order of operations (PEMDAS): first 763*42=32046, then 677+32046=32723.
basic_operations
2,636
geometry
easy
Find the area of a triangle with base 13 and height 56.
364
Area = 0.5*base*height = 0.5*13*56 = 364.
triangle_area
2,637
algebra
medium
Solve for x: x^2 - 3x - 10 = 0
x = -2, 5
Factor: (x - -2)(x - 5) = x^2 -(3)x + -10 = 0. So x = -2 or 5. Check sum = 3, product = -10.
quadratic
2,638
number_theory
medium
What is the GCD (greatest common divisor) of 43 and 39?
1
Find greatest number dividing both 43 and 39. Divisors common, greatest is 1.
gcd
2,639
arithmetic
easy
What is 609 / 87?
7
Divide: 609 ÷ 87 = 7 because 87*7=609.
division
2,640
roots
easy
What is the square root of 576?
24
Find number that when squared gives 576. 24*24=576, so sqrt(576)=24.
square_roots
2,641
number_theory
medium
What is the LCM (least common multiple) of 96 and 100?
2400
LCM = |96*100| / GCD(96,100). GCD=4, so LCM=9600/4=2400.
lcm
2,642
percentages
easy
What is 84% of 283?
237.72
Calculate 84/100 * 283 = 0.84*283 = 237.72.
percentages
2,643
fractions
medium
What is 19/14 + 3/5? Give as simplified fraction.
137/70
Common denominator 14*5=70. 19/14=95/70, 3/5=42/70. Sum = 137/70 = 137/70 simplified.
fraction_operations
2,644
arithmetic
easy
What is 2107 / 7?
301
Divide: 2107 ÷ 7 = 301 because 7*301=2107.
division
2,645
fractions
medium
What is 15/5 * 3/19? Give as simplified fraction.
9/19
Multiply numerators: 15*3=45. Denominators: 5*19=95. Simplify by gcd 5 to get 9/19.
fraction_operations
2,646
roots
easy
What is the square root of 400?
20
Find number that when squared gives 400. 20*20=400, so sqrt(400)=20.
square_roots
2,647
statistics
easy
What is the mean (average) of 69, 93, 20?
60.67
Mean = sum/count. Sum = 69+93+20=182. Count=3. Mean=182/3=60.67.
mean
2,648
arithmetic
easy
What is 92 * 33?
3036
Multiply: 92 * 33 = 3036.
basic_operations
2,649
number_theory
medium
What is the GCD (greatest common divisor) of 47 and 58?
1
Find greatest number dividing both 47 and 58. Divisors common, greatest is 1.
gcd
2,650
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
2,651
statistics
easy
What is the mean (average) of 68, 65, 3, 22?
39.5
Mean = sum/count. Sum = 68+65+3+22=158. Count=4. Mean=158/4=39.5.
mean
2,652
geometry
easy
Find the perimeter of a rectangle with length 38 and width 6.
88
Perimeter = 2*(length+width) = 2*(38+6) = 2*44 = 88.
rectangle_perim
2,653
arithmetic
easy
What is 814 + 996?
1810
Add the two numbers: 814 + 996 = 1810.
basic_operations
2,654
calculus
medium
What is the derivative of 9x^5 with respect to x?
45x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^5] = 9*5*x^4 = 45x^4.
derivative
2,655
arithmetic
easy
What is 50 * 72?
3600
Multiply: 50 * 72 = 3600.
basic_operations
2,656
calculus
medium
What is the derivative of 5x^6 with respect to x?
30x^5
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [5x^6] = 5*6*x^5 = 30x^5.
derivative
2,657
fractions
medium
What is 6/2 + 6/20? Give as simplified fraction.
33/10
Common denominator 2*20=40. 6/2=120/40, 6/20=12/40. Sum = 132/40 = 33/10 simplified.
fraction_operations
2,658
arithmetic
easy
What is 951 - 901?
50
Subtract: 951 - 901 = 50.
basic_operations
2,659
geometry
easy
Find the area of a circle with radius 15. Use pi=3.14159, round to 2 decimals.
706.86
Area = pi*r^2 = 3.14159*15^2 = 3.14159*225 = 706.86.
circle_area
2,660
exponents
easy
What is 6^2?
36
6^2 means multiply 6 by itself 2 times: 6*6 = 36.
exponents
2,661
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
2,662
percentages
easy
What is 38% of 41?
15.58
Calculate 38/100 * 41 = 0.38*41 = 15.58.
percentages
2,663
algebra
easy
Solve for x: 9x - 33 = -60
-3
Add 33 to both sides: 9x = -60+33=-27. Then x = -27/9 = -3.
linear_equation
2,664
arithmetic
easy
What is 15 * 1?
15
Multiply: 15 * 1 = 15.
basic_operations
2,665
number_theory
medium
What is the LCM (least common multiple) of 42 and 11?
462
LCM = |42*11| / GCD(42,11). GCD=1, so LCM=462/1=462.
lcm
2,666
algebra
easy
Solve for x: 14x + 28 = 0
-2
Subtract 28 from both sides: 14x = 0-28=-28. Then divide by 14: x = -28/14 = -2.
linear_equation
2,667
roots
easy
What is the square root of 16?
4
Find number that when squared gives 16. 4*4=16, so sqrt(16)=4.
square_roots
2,668
arithmetic
easy
What is 36 + 23 * 29? Remember order of operations.
703
Order of operations (PEMDAS): first 23*29=667, then 36+667=703.
basic_operations
2,669
arithmetic
easy
What is 14 * 93?
1302
Multiply: 14 * 93 = 1302.
basic_operations
2,670
calculus
medium
What is the derivative of 5x^7 with respect to x?
35x^6
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [5x^7] = 5*7*x^6 = 35x^6.
derivative
2,671
fractions
medium
What is 15/9 + 11/10? Give as simplified fraction.
83/30
Common denominator 9*10=90. 15/9=150/90, 11/10=99/90. Sum = 249/90 = 83/30 simplified.
fraction_operations
2,672
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
2,673
percentages
easy
What is 94% of 744?
699.36
Calculate 94/100 * 744 = 0.94*744 = 699.36.
percentages
2,674
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
2,675
algebra
easy
Solve for x: 16x - 39 = 137
11
Add 39 to both sides: 16x = 137+39=176. Then x = 176/16 = 11.
linear_equation
2,676
algebra
medium
Solve for x: x^2 + 1x - 20 = 0
x = 4, -5
Factor: (x - 4)(x - -5) = x^2 -(-1)x + -20 = 0. So x = 4 or -5. Check sum = -1, product = -20.
quadratic
2,677
algebra
medium
Solve for x: x^2 - 4x - 32 = 0
x = -4, 8
Factor: (x - -4)(x - 8) = x^2 -(4)x + -32 = 0. So x = -4 or 8. Check sum = 4, product = -32.
quadratic
2,678
statistics
easy
What is the mean (average) of 24, 83, 37, 3, 40?
37.4
Mean = sum/count. Sum = 24+83+37+3+40=187. Count=5. Mean=187/5=37.4.
mean
2,679
algebra
medium
Solve for x: x^2 + 3x - 10 = 0
x = -5, 2
Factor: (x - -5)(x - 2) = x^2 -(-3)x + -10 = 0. So x = -5 or 2. Check sum = -3, product = -10.
quadratic
2,680
fractions
medium
What is 3/6 + 3/15? Give as simplified fraction.
7/10
Common denominator 6*15=90. 3/6=45/90, 3/15=18/90. Sum = 63/90 = 7/10 simplified.
fraction_operations
2,681
word_problems
easy
If you have 87 apples and you buy 26 more apples, how many apples do you have in total?
113
Add initial 87 plus bought 26: 87+26=113.
addition_word
2,682
algebra
easy
Solve for x: 1x + 27 = 13
-14
Subtract 27 from both sides: 1x = 13-27=-14. Then divide by 1: x = -14/1 = -14.
linear_equation
2,683
calculus
medium
What is the derivative of 1x^5 with respect to x?
5x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [1x^5] = 1*5*x^4 = 5x^4.
derivative
2,684
arithmetic
easy
What is 1173 / 3?
391
Divide: 1173 ÷ 3 = 391 because 3*391=1173.
division
2,685
percentages
easy
What is 99% of 86?
85.14
Calculate 99/100 * 86 = 0.99*86 = 85.14.
percentages
2,686
geometry
easy
Find the perimeter of a rectangle with length 81 and width 77.
316
Perimeter = 2*(length+width) = 2*(81+77) = 2*158 = 316.
rectangle_perim
2,687
arithmetic
easy
What is 812 + 990?
1802
Add the two numbers: 812 + 990 = 1802.
basic_operations
2,688
roots
easy
What is the square root of 2116?
46
Find number that when squared gives 2116. 46*46=2116, so sqrt(2116)=46.
square_roots
2,689
arithmetic
easy
What is 57 * 21?
1197
Multiply: 57 * 21 = 1197.
basic_operations
2,690
statistics
easy
What is the mean (average) of 32, 8, 70?
36.67
Mean = sum/count. Sum = 32+8+70=110. Count=3. Mean=110/3=36.67.
mean
2,691
geometry
easy
Find the area of a triangle with base 16 and height 3.
24
Area = 0.5*base*height = 0.5*16*3 = 24.
triangle_area
2,692
arithmetic
easy
What is 106 + 558?
664
Add the two numbers: 106 + 558 = 664.
basic_operations
2,693
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
2,694
arithmetic
easy
What is 935 + 230?
1165
Add the two numbers: 935 + 230 = 1165.
basic_operations
2,695
algebra
easy
Solve for x: 12x + 33 = 9
-2
Subtract 33 from both sides: 12x = 9-33=-24. Then divide by 12: x = -24/12 = -2.
linear_equation
2,696
percentages
easy
What is 88% of 394?
346.72
Calculate 88/100 * 394 = 0.88*394 = 346.72.
percentages
2,697
arithmetic
easy
What is 5568 / 64?
87
Divide: 5568 ÷ 64 = 87 because 64*87=5568.
division
2,698
arithmetic
easy
What is 6954 / 38?
183
Divide: 6954 ÷ 38 = 183 because 38*183=6954.
division
2,699
arithmetic
easy
What is 22704 / 48?
473
Divide: 22704 ÷ 48 = 473 because 48*473=22704.
division
2,700
algebra
easy
Solve for x: 6x + 4 = 82
13
Subtract 4 from both sides: 6x = 82-4=78. Then divide by 6: x = 78/6 = 13.
linear_equation