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Addition
Subtraction
Multiplication
Division
Decimals
100

x + 4 = 25

What is 21

100

x - 2 = 6

What is 8

100

9 x b = 27

What is 3

100

y ÷ 6 = 2

What is 12

100

m + 3.7 = 4.4

What is 0.7

200

a + 13 = 23

What is 10

200

d - 7 = 9

What is 16

200

7 x c = 63

What is 9

200

b ÷ 4 = 14

What is 56

200

x - 66.09 = 102.8

What is 168.89

300

n + 8 = 14

What is 6

300

k - 83 =121

What is 204

300

5 x e = 400

What is 80

300

p ÷ 6 = 6

What is 36

300

5.6 = 0.8 x b

What is 7

400

x + 36 = 100

What is 64

400

x - 327 = 665

What is 992

400

11 x p = 275

What is 25

400

28 = a ÷ 13

What is 364

400

c ÷ 0.29 = 5.5

What is 1.595

500

61 = c + 45

What is 16

500

a - 163 = 392

What is 555

500

21 x y = 756

What is 36

500

80 = b ÷ 15

What is 1200

500

0.12 = y ÷ 0.12

What is 0.0144