Vocabulary
One Step Equations
Two-Step Equations
Equations With Decimals
Equations With Fractions
100

What is the inverse operation of addition?

Subtraction

100

x+2=5

3

100

2x+1=5

2

100

0.4x + 3.9 = 5.78

4.7

100

x/2 + 1 = 5

8

200

What is the inverse operation of multiplication?

Division
200

2a=20

10

200

8n+7=31

3

200

−5.4 − 7.8x = −78.408

9.36

200

x/5 -1 = -4

-15

300

What is the bottom of a fraction called?

Denominator

300

5+x=19

14

300

10-6v=-104

19

300

−8.38v + 10.71 = 131.382

-14.4

300

-6 = x/8 + 5

-88

400

What is the word we use to represent the word 'opposite' in math?

Inverse
400

5c=51

10.2

400

-10=-10+7m

0

400

m/2.8 - 4.9 = -7.11

DO NOT ROUND GIVE WHOLE ANSWER

-6.188

400

(3/5)x + 1 = 22

I will write this on the board

35

500

What is a letter or symbol representing an unknown called?

Variable

500

-5 = a / 18

-90

500

m/9  - 1 = -2

-9

500

v/10.44 − 2.9 = −4.422

DO NOT ROUND, GIVE WHOLE ANSWER

−15.88968

500

(2/7) x -6 = 20

I will write this one on the board

91

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