Ratio & Proportion Review ( notes + practice )

Ratio & Proportion Review (notes + practice)

WaTch the videos for extra help

You can skip through if you would like - but use it to help you!!!

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​Work through the problems & rewatch the videos as needed

​- you can repeat this lesson as many times as you would like

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​Important stuff here folks!

Ratio & Proportion Review (notes + practice)

• Writing & Simplifying Ratios

• ​Part-Part / Part Whole relationship

• ​Unit Rate

• Double Number Lines

• ​Tables

• ​Graphs

• ​solve proportions by scaling up (mult) or scaling down (div)

Writing & Simplifying Ratios

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Multiple Choice

SIMPLIFY the ratio of RED to WHITE SQUARES

• 12 : 8

• 6 : 4

• 3 : 2

• 2 : 3

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​ 6 red : 4 white

​

​simplify by dividing by 2​

​= 3 red to 2 white

​ 3 : 2

Multiple Choice

A bag has red & blue marbles inside. 4 marbles are red out of 12 total marbles.

Write & SIMPLIFY the ratio of red marbles to blue marbles

• 1 : 2

• 1 : 3

• 3 : 1

• 2 : 1

​A bag has red & blue marbles inside. 4 marbles are red out of 12 total marbles.

Write & SIMPLIFY the ratio of red marbles to blue marbles

​

4 red

​+ 8 blue

​= 12 total

​

​red : blue

​ 4 : 8

​Simplify by dividing by 4

​= 1 : 2

​​Part-Part / Part Whole relationship

Draw

There are 20 children in class. 11 are boys and 9 are girls.

draw a line to match the ratios correctly

​Double Number Lines

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Fill in the Blanks

How many pages are read in 60 minutes?

​15 pages would be read in 60 minutes

​Ratio Tables

Fill in the Blanks

How many children need 15 toys ?

​Ratio tables

​5 toys

​x3

​= 15 toys

​

​3 children

​x3

​=9 children

​Rates & Graphs

​you can see that in 30 minutes, Serena runs 3 miles

Multiple Choice

How many minutes does it take for her to run 5 miles

• 15

• 20

• 50

• 60

​Solving Proportions ( scaling )

Multiple Choice

$$\frac{25}{1}=\frac{x}{3}$$  

• x=75

• x=50

• x=27

• x=43

Multiple Choice

$$\frac{15}{25}=\frac{18}{x}$$  

• x=28

• x=10

• x=30

• x=11

Multiple Choice

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Multiple Choice

There were 5 ice cream cones for every 3 brownies sold at the ice cream shop. If there were 24 brownies sold, how many ice cream cones were sold?

• 8
• 15
• 40
• 29

Multiple Choice

Pat needs 14 sticks of pepperoni to make 28 pizzas.  How many sticks of pepperoni are needed to make 36 pizzas?  

• 15 pizzas
• 252 sticks
• 18 sticks
• 18 pizzas