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Addition
Subtraction
Multiplication
Division
Decimals
100
x + 4 = 25
What is 21
100
x - 2 = 6
What is 8
100
9x = -27
What is -3
100

y/6 = 2

What is 12

100

m + 3.7 = 24.4

What is 20.7

200
a + 13 = 10
What is -3
200

d - 17 = 94

What is 111

200

-7x = -63

What is 9

200

x/4 = -14

What is -56

200

x - 66.8 = 102.8

What is 169.6

300

n + 83 = 243

What is 160

300

k - (-83) =121

What is 38

300
-5e = -400
What is 80
300

x/16 = 6

What is 96

300

-5.6 = 0.8x

What is -7

400

x + 36 = -100

What is -136

400

x - 327.5 = 762.25

What is 1089.75

400
-11x = 275
What is -25
400

-28 = a/-13

What is 364

400

c/17 = 5.5

What is 93.5

500

27 = c + 27

What is 0

500

a - 597= -392

What is 205

500

21y = 756

What is 36

500

80 = x/15

What is 1200

500

0.12 = y/0.12

What is 0.0144