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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
d - 7 = -9
What is -2
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 + 83 =121

What is 38

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 - 327 = 327

What is 654

400

11x = 275

What is 25

400

4 = a/13

What is 52

400

c/2 = 5.5

What is 11

500
-27 = c + 27
What is -56
500

a - 163 = 392

What is 555

500

21y = 756

What is 36

500

5 = x/15

What is 75

500

12 = y/12

What is 144