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
6,401
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
6,402
geometry
easy
Find the circumference of a circle with radius 19. Use pi=3.14159, round to 2 decimals.
119.38
Circumference = 2*pi*r = 2*3.14159*19 = 119.38.
circle_circum
6,403
arithmetic
easy
What is 799 + 278 * 64? Remember order of operations.
18591
Order of operations (PEMDAS): first 278*64=17792, then 799+17792=18591.
basic_operations
6,404
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
6,405
algebra
easy
Solve for x: 8x - 10 = -138
-16
Add 10 to both sides: 8x = -138+10=-128. Then x = -128/8 = -16.
linear_equation
6,406
arithmetic
easy
What is 858 - 709?
149
Subtract: 858 - 709 = 149.
basic_operations
6,407
arithmetic
easy
What is 806 + 483?
1289
Add the two numbers: 806 + 483 = 1289.
basic_operations
6,408
number_theory
medium
What is the GCD (greatest common divisor) of 12 and 62?
2
Find greatest number dividing both 12 and 62. Divisors common, greatest is 2.
gcd
6,409
algebra
medium
Solve for x: x^2 - 15x + 56 = 0
x = 7, 8
Factor: (x - 7)(x - 8) = x^2 -(15)x + 56 = 0. So x = 7 or 8. Check sum = 15, product = 56.
quadratic
6,410
number_theory
medium
What is the LCM (least common multiple) of 11 and 35?
385
LCM = |11*35| / GCD(11,35). GCD=1, so LCM=385/1=385.
lcm
6,411
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
6,412
arithmetic
easy
What is 46 + 66 * 10? Remember order of operations.
706
Order of operations (PEMDAS): first 66*10=660, then 46+660=706.
basic_operations
6,413
number_theory
medium
What is the GCD (greatest common divisor) of 70 and 95?
5
Find greatest number dividing both 70 and 95. Divisors common, greatest is 5.
gcd
6,414
arithmetic
easy
What is 19737 / 43?
459
Divide: 19737 ÷ 43 = 459 because 43*459=19737.
division
6,415
geometry
easy
Find the area of a triangle with base 51 and height 86.
2193
Area = 0.5*base*height = 0.5*51*86 = 2193.
triangle_area
6,416
number_theory
medium
What is the GCD (greatest common divisor) of 32 and 78?
2
Find greatest number dividing both 32 and 78. Divisors common, greatest is 2.
gcd
6,417
calculus
medium
What is the derivative of 8x^2 with respect to x?
16x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^2] = 8*2*x^1 = 16x.
derivative
6,418
statistics
easy
What is the mean (average) of 7, 37, 2?
15.33
Mean = sum/count. Sum = 7+37+2=46. Count=3. Mean=46/3=15.33.
mean
6,419
percentages
easy
What is 2% of 735?
14.7
Calculate 2/100 * 735 = 0.02*735 = 14.7.
percentages
6,420
exponents
easy
What is 7^4?
2401
7^4 means multiply 7 by itself 4 times: 7*7*7*7 = 2401.
exponents
6,421
arithmetic
easy
What is 10082 / 71?
142
Divide: 10082 ÷ 71 = 142 because 71*142=10082.
division
6,422
algebra
easy
Solve for x: 6x - 40 = 44
14
Add 40 to both sides: 6x = 44+40=84. Then x = 84/6 = 14.
linear_equation
6,423
arithmetic
easy
What is 698 - 215?
483
Subtract: 698 - 215 = 483.
basic_operations
6,424
algebra
medium
Solve for x: x^2 + 12x + 27 = 0
x = -9, -3
Factor: (x - -9)(x - -3) = x^2 -(-12)x + 27 = 0. So x = -9 or -3. Check sum = -12, product = 27.
quadratic
6,425
number_theory
medium
What is the LCM (least common multiple) of 70 and 71?
4970
LCM = |70*71| / GCD(70,71). GCD=1, so LCM=4970/1=4970.
lcm
6,426
geometry
easy
Find the area of a rectangle with length 85 and width 57.
4845
Area = length * width = 85*57 = 4845.
rectangle_area
6,427
arithmetic
easy
What is 156 + 402?
558
Add the two numbers: 156 + 402 = 558.
basic_operations
6,428
roots
easy
What is the square root of 36?
6
Find number that when squared gives 36. 6*6=36, so sqrt(36)=6.
square_roots
6,429
calculus
medium
What is the derivative of 7x^4 with respect to x?
28x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^4] = 7*4*x^3 = 28x^3.
derivative
6,430
fractions
medium
What is 7/9 + 11/15? Give as simplified fraction.
68/45
Common denominator 9*15=135. 7/9=105/135, 11/15=99/135. Sum = 204/135 = 68/45 simplified.
fraction_operations
6,431
fractions
medium
What is 2/8 - 20/16? Give as simplified fraction.
-1
Common denominator 128. Numerator 32-160=-128. So -128/128 simplifies to -1.
fraction_operations
6,432
geometry
easy
Find the area of a rectangle with length 65 and width 65.
4225
Area = length * width = 65*65 = 4225.
rectangle_area
6,433
arithmetic
easy
What is 788 + 781 * 56? Remember order of operations.
44524
Order of operations (PEMDAS): first 781*56=43736, then 788+43736=44524.
basic_operations
6,434
statistics
easy
What is the mean (average) of 77, 22, 6?
35
Mean = sum/count. Sum = 77+22+6=105. Count=3. Mean=105/3=35.0.
mean
6,435
arithmetic
easy
What is 28002 / 78?
359
Divide: 28002 ÷ 78 = 359 because 78*359=28002.
division
6,436
percentages
easy
What is 11% of 95?
10.45
Calculate 11/100 * 95 = 0.11*95 = 10.45.
percentages
6,437
fractions
medium
What is 5/14 + 13/5? Give as simplified fraction.
207/70
Common denominator 14*5=70. 5/14=25/70, 13/5=182/70. Sum = 207/70 = 207/70 simplified.
fraction_operations
6,438
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
6,439
geometry
easy
Find the area of a triangle with base 44 and height 72.
1584
Area = 0.5*base*height = 0.5*44*72 = 1584.
triangle_area
6,440
arithmetic
easy
What is 352 + 167 * 52? Remember order of operations.
9036
Order of operations (PEMDAS): first 167*52=8684, then 352+8684=9036.
basic_operations
6,441
arithmetic
easy
What is 4891 divided by 16? Give answer to 2 decimal places.
305.69
Calculate 4891/ 16 = 305.6875, rounded to 2 decimals is 305.69.
division
6,442
arithmetic
easy
What is 21 + 19 * 88? Remember order of operations.
1693
Order of operations (PEMDAS): first 19*88=1672, then 21+1672=1693.
basic_operations
6,443
percentages
easy
What is 77% of 927?
713.79
Calculate 77/100 * 927 = 0.77*927 = 713.79.
percentages
6,444
statistics
easy
What is the mean (average) of 1, 61, 62, 35, 47?
41.2
Mean = sum/count. Sum = 1+61+62+35+47=206. Count=5. Mean=206/5=41.2.
mean
6,445
geometry
easy
Find the area of a circle with radius 31. Use pi=3.14159, round to 2 decimals.
3019.07
Area = pi*r^2 = 3.14159*31^2 = 3.14159*961 = 3019.07.
circle_area
6,446
arithmetic
easy
What is 99 * 18?
1782
Multiply: 99 * 18 = 1782.
basic_operations
6,447
fractions
medium
What is 3/16 - 3/11? Give as simplified fraction.
-15/176
Common denominator 176. Numerator 33-48=-15. So -15/176 simplifies to -15/176.
fraction_operations
6,448
arithmetic
easy
What is 843 - 633?
210
Subtract: 843 - 633 = 210.
basic_operations
6,449
geometry
easy
Find the circumference of a circle with radius 32. Use pi=3.14159, round to 2 decimals.
201.06
Circumference = 2*pi*r = 2*3.14159*32 = 201.06.
circle_circum
6,450
calculus
medium
What is the derivative of 3x^5 with respect to x?
15x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^5] = 3*5*x^4 = 15x^4.
derivative
6,451
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
6,452
percentages
easy
What is 42% of 720?
302.4
Calculate 42/100 * 720 = 0.42*720 = 302.4.
percentages
6,453
calculus
medium
What is the derivative of 6x^2 with respect to x?
12x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^2] = 6*2*x^1 = 12x.
derivative
6,454
percentages
easy
What is 2% of 142?
2.84
Calculate 2/100 * 142 = 0.02*142 = 2.84.
percentages
6,455
calculus
medium
What is the derivative of 9x^2 with respect to x?
18x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [9x^2] = 9*2*x^1 = 18x.
derivative
6,456
exponents
easy
What is 2^3?
8
2^3 means multiply 2 by itself 3 times: 2*2*2 = 8.
exponents
6,457
number_theory
medium
What is the LCM (least common multiple) of 63 and 72?
504
LCM = |63*72| / GCD(63,72). GCD=9, so LCM=4536/9=504.
lcm
6,458
arithmetic
easy
What is 52 * 7?
364
Multiply: 52 * 7 = 364.
basic_operations
6,459
arithmetic
easy
What is 403 - 243?
160
Subtract: 403 - 243 = 160.
basic_operations
6,460
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
6,461
arithmetic
easy
What is 68 + 83 * 17? Remember order of operations.
1479
Order of operations (PEMDAS): first 83*17=1411, then 68+1411=1479.
basic_operations
6,462
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
6,463
arithmetic
easy
What is 639 + 559 * 76? Remember order of operations.
43123
Order of operations (PEMDAS): first 559*76=42484, then 639+42484=43123.
basic_operations
6,464
fractions
medium
What is 19/3 + 19/5? Give as simplified fraction.
152/15
Common denominator 3*5=15. 19/3=95/15, 19/5=57/15. Sum = 152/15 = 152/15 simplified.
fraction_operations
6,465
arithmetic
easy
What is 4 * 19?
76
Multiply: 4 * 19 = 76.
basic_operations
6,466
arithmetic
easy
What is 623 + 269?
892
Add the two numbers: 623 + 269 = 892.
basic_operations
6,467
word_problems
easy
If you have 52 candies and you buy 37 more candies, how many candies do you have in total?
89
Add initial 52 plus bought 37: 52+37=89.
addition_word
6,468
number_theory
medium
What is the GCD (greatest common divisor) of 30 and 15?
15
Find greatest number dividing both 30 and 15. Divisors common, greatest is 15.
gcd
6,469
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
6,470
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
6,471
algebra
easy
Solve for x: 15x - 6 = 159
11
Add 6 to both sides: 15x = 159+6=165. Then x = 165/15 = 11.
linear_equation
6,472
exponents
easy
What is 12^4?
20736
12^4 means multiply 12 by itself 4 times: 12*12*12*12 = 20736.
exponents
6,473
geometry
easy
Find the area of a circle with radius 41. Use pi=3.14159, round to 2 decimals.
5281.02
Area = pi*r^2 = 3.14159*41^2 = 3.14159*1681 = 5281.02.
circle_area
6,474
algebra
easy
Solve for x: 2x - 10 = -14
-2
Add 10 to both sides: 2x = -14+10=-4. Then x = -4/2 = -2.
linear_equation
6,475
exponents
easy
What is 6^4?
1296
6^4 means multiply 6 by itself 4 times: 6*6*6*6 = 1296.
exponents
6,476
percentages
easy
What is 66% of 93?
61.38
Calculate 66/100 * 93 = 0.66*93 = 61.38.
percentages
6,477
arithmetic
easy
What is 657 / 73?
9
Divide: 657 ÷ 73 = 9 because 73*9=657.
division
6,478
calculus
medium
What is the derivative of 6x^4 with respect to x?
24x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^4] = 6*4*x^3 = 24x^3.
derivative
6,479
fractions
medium
What is 10/11 - 11/14? Give as simplified fraction.
19/154
Common denominator 154. Numerator 140-121=19. So 19/154 simplifies to 19/154.
fraction_operations
6,480
algebra
medium
Solve for x: x^2 - 4x - 45 = 0
x = -5, 9
Factor: (x - -5)(x - 9) = x^2 -(4)x + -45 = 0. So x = -5 or 9. Check sum = 4, product = -45.
quadratic
6,481
number_theory
medium
What is the LCM (least common multiple) of 20 and 16?
80
LCM = |20*16| / GCD(20,16). GCD=4, so LCM=320/4=80.
lcm
6,482
statistics
easy
What is the mean (average) of 41, 90, 53?
61.33
Mean = sum/count. Sum = 41+90+53=184. Count=3. Mean=184/3=61.33.
mean
6,483
calculus
medium
What is the derivative of 4x^2 with respect to x?
8x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [4x^2] = 4*2*x^1 = 8x.
derivative
6,484
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
6,485
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
6,486
algebra
easy
Solve for x: 10x + 19 = 89
7
Subtract 19 from both sides: 10x = 89-19=70. Then divide by 10: x = 70/10 = 7.
linear_equation
6,487
arithmetic
easy
What is 459 - 11?
448
Subtract: 459 - 11 = 448.
basic_operations
6,488
algebra
easy
Solve for x: 14x + 1 = -265
-19
Subtract 1 from both sides: 14x = -265-1=-266. Then divide by 14: x = -266/14 = -19.
linear_equation
6,489
algebra
easy
Solve for x: 7x - 5 = -117
-16
Add 5 to both sides: 7x = -117+5=-112. Then x = -112/7 = -16.
linear_equation
6,490
number_theory
medium
What is the GCD (greatest common divisor) of 65 and 47?
1
Find greatest number dividing both 65 and 47. Divisors common, greatest is 1.
gcd
6,491
arithmetic
easy
What is 1 * 9?
9
Multiply: 1 * 9 = 9.
basic_operations
6,492
arithmetic
easy
What is 509 - 434?
75
Subtract: 509 - 434 = 75.
basic_operations
6,493
number_theory
medium
What is the GCD (greatest common divisor) of 68 and 57?
1
Find greatest number dividing both 68 and 57. Divisors common, greatest is 1.
gcd
6,494
number_theory
medium
What is the LCM (least common multiple) of 17 and 23?
391
LCM = |17*23| / GCD(17,23). GCD=1, so LCM=391/1=391.
lcm
6,495
exponents
easy
What is 3^3?
27
3^3 means multiply 3 by itself 3 times: 3*3*3 = 27.
exponents
6,496
percentages
easy
What is 76% of 335?
254.6
Calculate 76/100 * 335 = 0.76*335 = 254.6.
percentages
6,497
exponents
easy
What is 9^4?
6561
9^4 means multiply 9 by itself 4 times: 9*9*9*9 = 6561.
exponents
6,498
arithmetic
easy
What is 96 + 47 * 34? Remember order of operations.
1694
Order of operations (PEMDAS): first 47*34=1598, then 96+1598=1694.
basic_operations
6,499
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
6,500
word_problems
easy
If you have 79 dollars and you buy 4 more dollars, how many dollars do you have in total?
83
Add initial 79 plus bought 4: 79+4=83.
addition_word