One-Step Equations Review

Addition Equations

100

3 + x = 15

x = 12

200

w + 43 = 91

w = 48

300

34 = 20 + a

a = 14

400

1/4 + a = 3/4

a = 1/2

500

9.43 = n + 3.2

n = 6.23

Subtraction Equations

100

x - 4 = 15

x = 19

200

b - 17 = 38

b = 55

300

110 = m - 38

m = 148

400

2/9 = x - 3/9

x = 5/9

500

4.5 = x - 4.23

x = 8.73

Multiplication Equations

100

5m = 10

m = 2

200

6x = 84

x = 14

300

620 = 5n

n = 124

400

3g = 4.8

g = 1.6

500

17.4 = 3a

a = 5.8

Division Equations

100

a/6 = 2

a = 12

200

7 = m/8

m = 56

300

n/9 = 12

n = 108

400

7 = y/2.9

y = 20.3

500

j/3 = 0.85

j = 2.55

Name the Inverse Operation

100

r/12 = 8

Multiplication

200

w + 75 = 258

Subtraction

300

9h = 45

Division

400

130 = n - 85

Addition

500

1.28 = m/6

Multiplication