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Definitions
Muliplication/ Division
Addition/ Subtraction
Two Step
Mixed Practice
100
What is a two step equation?
Equations that take two steps.
100

What does n equal? 5+(6/2)/3=n

n=6

100

What does x equal? x-4=7

x=11

100

What does y equal? 2y+5=9

y=2

100

What does n equal? 21/3=n

n=7

200
What is an equation?
A mathematical sentence that has an EQUAL SIGN!
200

What does a equal? 7a-23=12

a=5

200

What does y equal? y/9 = 9

y=81

200

What does n equal? n/6 - 1 = 3

n=24

200

A summer job as an assistant counselor pays $6.50 per hour. How much does the counselor get for working 8 hours?

They get $52.00 for working 8 hours.

300
What are inverse operations?
Operations that "undo" each other or "inverse" out each other.
300

What does b equal? b/15+6=11

b=75

300

Sue was 30 years old when her daughter Amy was born. If s represents Sue's age, which expression describes Amy age? A) s+30 B) s/30 C) 30-s D) s-30

A) s + 30

300

What does p equal? p/3+8=20

p=36

300

What does x equal? x/4=32

x=128

400
What is a solution?
A solution of an equation is the value of variables that makes the equation true. (the answer)
400

3x-15=24

x=13

400

When burned, 18 gallons of gasoline produce about 360 pounds of carbon dioxide. Solve the equation 18n=360 to find out how much carbon dioxide 1 gallon of gasoline produces.

20 pounds

400

You save 26 dollars each week to buy a camera that cost 260 dollars. You already saved 182 dollars. In how many weeks will you save 260 dollars? Let w represent the number of weeks. Solve 26w+182=260.

In 3 weeks

400

What does d equal? 5d-2.16 = 3.9

d = 1.21

500
What is a multi-step equation?
An equation with that requires two or more steps to find a solution.
500

x/27+8=17

x=243

500

Yon need to buy a pair of pants and 3 shirts. You have 90 dollars to spend. The pants cost 24 dollars. How much can you spend on each shirt?

22 dollars

500

You order a backpack for 34 dollars and pens for 2 dollars each. You spend 46 dollars. How many pens do you order? Solve 3s+24=90

22 dollars

500

Lexie earns $5 a hour baby sitting. She worked 4 hours and spent $8.75 of her earnings. Write an equation that could determine how much she had left m=money.

m=20-8.75