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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 = 2.4
What is -1.3
200
a + 13 = 10
What is -3
200

x - 7 = 1

What is 8

200

7x = 63

What is 9

200
x/4 = -14
What is -56
200

x - 66.09 = 102.8

What is 36.71

300

n + (8) = 14

What is 6

300

k - 20 = 40

What is 20

300

5e = 400

What is 80

300
x/6 = -6
What is -36
300

5.6 = 0.8x

What is 7

400

x + 36 = 100

What is 136

400

x - 37 = 80

What is 117

400

11x = 275

What is 25

400

28 = a/13

What is 364

400

c/0.29 = 5.5

What is 1.595

500

27 = c + 7

What is 20

500

a - 300 = 300

What is 600

500

21y = 756

What is 36

500

80 = x/15

What is 1200

500
0.12 = y/0.12
What is 0.0144