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Addition
Subtraction
Multiplication
Division
Decimals
100

x + 4 = 25

What is x = 21

100

x - 2 = 6

What is x = 8

100

9x = 108

What is x = 12

100

y/6 = 2

What is y = 12

100

m + 3.7 = 9.4

What is m = 5.7

200

a + 13 = 52

What is a = 39

200

d - 17 = 9

What is d = 26

200

7x = 98

What is x = 14

200

x/4 = 14

What is x = 56

200

x - 66.09 = 102.8

What is x = 168.89

300

n + 8 = 64

What is n = 56

300

k - 83 =121

What is k = 204

300

5e = 400

What is e = 80

300

x/13 = 13

What is x = 169

300

5.6 =  0.8x

What is x = 7

400

x + 36 = 100

What is x = 64

400

x - 327 = 665

What is x = 992

400

11x = 275

What is x = 25

400

28 =  a/13

What is a = 364

400

c/0.29 =  5.5

What is c = 1.595

500

86 = c + 27

What is c = 59

500

a - 4,763 = 399

What is a = 5,162

500

21y = 756

What is y = 36

500

80 =  x/15

What is x = 1200

500

0.12 =  y/0.12

What is y = 0.0144