Addition
Subtraction
Short Answer
Multiplication
Division
100

a + 3 = 8

5

100

a - 5 = 4

9
100

Give me an example of a variable

any letter

100

5a = 25

5

100

a/9 = 9

81

200

x + 8 = -12

-20

200

a - 10 = -13

-3

200

Define "inverse operation"

The opposite, signs that undo each other

200

25n = -625

-25

200

a/7 = -4

-28

300

a + 66= 21

-45

300

a - 56 = 8

64

300

What is the inverse operation of addition? 

Subtraction

300

-18g = 486

-27

300

a/10 = 4

40

400

a + (-30) = 120

150

400

a - (-15) = 15

0

400

Name the 4 operations you can use in math.

addition, subtraction, multiplication, division

400

(3/4)y = -12

-16

400

a/-12 = -4

48

500

a + (-12) = 86

98

500

a - (-48)= 28

-20
500

What can you do to check your answer when solving?

Substitute the variable with your answer.

500

(1/8)x = 56

448

500

b/12 = 7

84