Unit 2 Mid-Unit Review

Unit 2 Mid-Unit Review

Ratios

Ratio Tables

Unit Rates

Vocab

• A RATIO is a comparison of 2 numbers.

  ​

• A RATE is a ratio that compares quantities with different units of measurement.

  ​

• A UNIT RATE is a comparison of 2 measurements in which one of the terms equals 1.

Multiple Choice

What is a comparison of 2 numbers?

• rate

• ratio

• unit rate

Multiple Choice

What is a ratio that compares quantities with different units of measurement?

• rate

• ratio

• unit rate

Multiple Choice

What is a comparison of two measurements in which one of the terms has a value of 1?

• rate

• ratio

• unit rate

Ratios

Multiple Choice

What is the ratio of blue cake pops TO yellow and pink cake pops?

(Simplify!)

• 1 to 2

• 1 to 4

• 2 to 3

• 2 to 1

Multiple Choice

What type of ratio is this?

blue cake pops TO yellow and pink cake pops

• part to whole

• part to part

Explanations

The ratio of blue TO yellow & pink:

There are 2 blue; 4 yellow and pink.

​

2 to 4 simplifies to 1 to 2.

​​

This is a part-to-part ratio because blue represents a PART and yellow/pink represent a PART.

Multiple Choice

What is the ratio of yellow TO all cake pops?

(Simplify!)

• 1 to 2

• 1 to 4

• 2 to 3

• 1 to 3

Multiple Choice

What type of ratio is this?

yellow TO all cake pops

• part to whole

• part to part

Explanations

The ratio of yellow TO all cake pops:

There are 2 yellow; 6 in all.

​

2 to 6 simplifies to 1 to 3.

​​

This is a part-to-whole ratio because yellow represents a PART and ALL represents the WHOLE.

Multiple Choice

There are 16 boys and 11 girls.

What is the ratio of girls to boys? (ORDER MATTERS!)

• 16 to 11

• 11 to 16

• 11 to 27

• 16 to 27

Multiple Choice

What is the ratio of bees to pandas?

• 2 to 4

• 2 to 3

• 4 to 7

• 2 to 1

Multiple Choice

Which ratio equals 4:6?

• 3:2

• 8:12

• 12:8

• 14:16

Multiple Choice

Which is NOT a way to write a ratio?

• 9 to 8

• 6 : 14

• 3, 10

• $$\frac{51}{100}$$  

Ratio Language

​

For every _____________, there are ___________.

Multiple Choice

Which states the ratio of monkeys to bananas using ratio language?

• For every 5 monkeys, there are 4 bananas.

• For every 4 monkeys, there is 1 banana.

• For every 4 monkeys, there are 5 bananas.

• For every 2 monkeys, there are 4 bananas.

Unit Rates

• DIVIDE to calculate unit rates!

  ​

• Include units

Multiple Choice

12 pizzas cost $132.

What is the unit rate per pizza?

• $12

• $12 per pizza

• $11 per pizza

• $11

Multiple Choice

Bolt ran 50 miles in 10 hours.

Lightning ran 72 miles in 12 hours.

What was Lightning's speed in miles per hour?

• 5 miles per hour

• 5.5 miles per hour

• 6 miles per hour

• 864 miles per hour

Multiple Choice

Bolt ran 50 miles in 10 hours.

Lightning ran 72 miles in 12 hours.

What was Bolt's speed in miles per hour?

• 5 miles per hour

• 5.5 miles per hour

• 6 miles per hour

• 864 miles per hour

Multiple Choice

Bolt ran 50 miles in 10 hours.

Lightning ran 72 miles in 12 hours.

Who ran faster?

• Bolt

• Lightning

• they ran at the same speed

Explanation: Bolt vs. Lightning

• Bolt ran 50 miles in 10 hours. His UNIT RATE is 5 miles per hour.

  ​

• Lightning ran 72 miles in 12 hours. His UNIT RATE is 6 miles per hour.

  ​

• Lightning was faster, because 6 mph is faster than 5 mph.

Multiple Choice

Costco sells a 24-pack of Cokes for $12.96.

Sam's sells the same 24-pack of Cokes for $13.92.

Which has the better deal?

• Costco

• Sam's

• Both are the samw

Explanation: Costco vs. Sam's

Costco sells a 24-pack of Cokes for $12.96.

​

Sam's sells the same 24-pack of Cokes for $13.92.

​

Which has the better deal? You don't even have to calculate the unit rates! They both have 24 Cokes - which is cheaper? Costco

Ratio Tables

To find missing numbers, multiply or divide. See the example ------>

Multiple Choice

What is the missing number in the ratio table?

• 4

• 10

• 12

• 14

The missing value was 12.

On the left side, 5 x 3 = 15.

​

Do the same to the right side.

4 x 3 = 12.​

Multiple Choice

What is the missing number in the ratio table?

• 7

• 10

• 12

• 14

The missing value was 14.

Multiple Choice

What numbers are missing from the ratio table?

• 8, 32, and 40

• 8, 16, and 24

• 4, 12, and 14

• 16, 20, and 40

The missing values are 8, 32, and 40.

​

Poll

Based on this Quizizz, what grade do you think you'll earn on the test?

• I'll earn an A!

• I'll earn a B or C!

• I'll earn a D or F.