One-Step Equations

Addition

100

n + 4 = 7

n = 3

200

k + 15 = 16

k = 1

300

z + 13 = 38

z = 25

400

27 = r + 15

12 = r

500

m + -6 = 5

m = 11

Subtraction

100

w - 9 = 10

w = 19

200

j - 23 = 34

j = 57

300

e - 77 = 42

e = 119

400

32 = y - 9

y = 41

500

c - 8 = -13

c = -5

Multiplication

100

5 ∙ t = 40

t = 8

200

12 ∙ p = 84

p = 7

300

4b = 36

b = 9

400

-2h = -22

h = 11

500

-3g = -300

g = 100

Division

100

f ÷ 4 = 6

f = 24

200

q ÷ 10 = 11

q = 110

300

a/2 = 12

a = 24

400

g/4 = -5

g = -20

500

v/100 = -5

v = -500

Operations

100

When you see a FRACTION, it means THIS operation.

What is division?

200

This operation is the INVERSE of subtraction.

What is addition?

300

This operation is the INVERSE of multiplication.

What is division?

400

When you see the word OF, it means THIS operation.

What is multiplication?

500

These TWO operations usually make numbers INCREASE.

What are addition and multiplication?