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Inverse
Addition
Subtraction
Multiplication
Division
100

What is the inverse of addition?

Subtraction

100

r + 1 = 3

r = 2

100

v - 10 = 9

v = 19

100

2x = 12

x = 6

100

n/2 = 3

n = 6

200

What is the inverse of subtraction?

Addition

200

r + 7 = 26

r = 19

200

b - 11 = 21

b = 32

200

11n = 132

n = 12

200

m/5 = 1

m = 5

300

What is the inverse of multiplication?

Division

300

14 + X = 19

X = 5

300

b - 3 = 2

b = 5

300

30 = 2a

a = 15

300

3 = a/5

a = 15

400

What is the inverse of division?

Multiplication

400
X + 18 = 35

X = 17

400

8 = X - 12

X = 20

400

5n = 60

n = 12

400

x/4 = -4

x = -16

500

What does inverse mean?

The opposite or the operation that cancels out the other.
500

21 + X = -9

X = -30

500

-11 + m = -17

m = -6

500

-10k = -20

k = 2

500

-11 = x/5

         

x = -55