Addition
Subtraction
Multiplication
Division
Decimals
100

x + 4 = 25

x = 21

100

x - 2 = 6

x = 8

100

9x = 27

x = 3

100

y/6 = 2

y = 12

100

x+3.7=8.2

x = 4.5

200

a + 13 = 20

a = 8

200

d - 7 = 9

d =16

200

4x=48

x = 12

200

c / 7 = 6

c = 42

200

zāˆ’5.4=2.1

z =7.5

300

n + 8 = 14

n = 6

300

x-15 = 19

x=34

300

11x = 275

x = 25

300

x/4 = 14

x=56

300

x / 2.5 = 6

x = 15

400

x + 36 = -100

x = -136

400

x + 4 = -3

x = -7

400

5x=āˆ’35

x = -7

400

n / -6 = -8

n = 48

400

0.6b=1.8

b = 3

500

 c + 27 = - 27

c = -56

500

x - (-2) = 4

x =2

500

āˆ’3x=18

x = -6

500

-28 = a/-13 

a = 364

500

a / -4.2 = -3

a = 12.6

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