Adding one step equations (+)
Subtracting one step equations (-)
one step equations
Inverses
100

 3 + a =  8

5

100

a - 5 = 4

9

100

a - 10 = 5

15

100

what is the inverse of SUBTRACTION (-) 

ADDITION (+)

200

25 + a = 42

17

200

a - 18 = 30

48

200

 a - 68 = 18

86

200

what is the inverse of Multiplication(*) 

DIVISION (÷ )

300

p + 7 = 8 

1

300

a - 180 = 300

480

300

n - 14= 24

38

300

whats is the inverse of ADDITION (+)

SUBTRACTION (-)

400

a + 82 = 97

15

400

s - 51 = 12

63

400

r + 6 = 18 

12

400

13 + s = 22

9

500

 z – 11 = 3

14

500

a - 12= 10

22

500

a + 12= 19 

7

500

what is the inverse of DIVISION (÷ )

Multiplication (*) 

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