Addition
Subtraction
Multiplication
Division
Decimals
100

x + 4 = 25

Correct answer is 21

100

x - 2 = 6

Correct answer is 8

100

9x = -27

Correct answer is -3

100

y/-6 = 2

Correct answer is -12

100

m + 3.7 = 2.4

Correct answer is -1.3

200

a + 13 = 10

Correct answer is -3

200

d - 7 = -9

Correct answer is -2

200

-7x = -63

Correct answer is 9

200

x/4 = -14

Correct answer is -56

200

x - (-66.09) = 102.8

Correct answer is 36.71

300

n + (-8) = -14

Correct answer is -6

300

k - (-83) =121

Correct answer is 38

300

-5e = -400

Correct answer is 80

300

x/6 = -6

Correct answer is -36

300

-5.6 = 0.8x

Correct answer is -7

400

x + 36 = -100

Correct answer is -136

400

x - 327 = -665

Correct answer is -338

400

-11x = 275

Correct answer is -25

400

-28 = a/-13

Correct answer is 364

400

c/-0.29 = 5.5

Correct answer is -1.595

500

-27 = c + 27

Correct answer is -54

500

a - (-163) = -392

Correct answer is -555

500

-21y = -756

Correct answer is 36

500

-80 = x/15

Correct answer is -1200

500

0.12 = y/0.12

Correct answer is 0.0144