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Addition
Subtraction
Multiplication
Division
Challenge
100

x + 8 = 24

What is 16

100
x - 12 = 1
What is 13
100
3x = 42
What is 14
100
x / 8 = 7
What is 56
100
x + 8 = -12
What is -20
200

28 + x = 43

What is 15

200
x - 49 = 23
What is 72
200
12x = 48
What is 4
200
x / 25 = 11
What is 275
200
10 - x = -14
What is 24
300

32 = 5 + x

What is 27

300
31 = x - 24
What is 55
300
112 = 14x
What is 8
300
x = 87 / 3
What is 29
300
5x = -130
What is -26
400

81 = x + 49

What is 32

400
x - 43 = 55
What is 98
400
256 = 16x
What is 16
400
23 = x / 12
What is 276
400

x / -4 = -12

What is 48