5.4: Percent of a Quantity

• Math
• 6th Grade

5.4: Percent of a Quantity

Learning Objective

We will be able to calculate the percent of a quantity.

Why are We Learning This?

Why are We Learning This?

Turn and talk- What is the definition of percent in your own words?

Review Example- Watch! 

Change the percent into a fraction. 

70%

 70

100

Review Example- Watch! 

Change the percent into a fraction. 

70%

 70

100

Review Example- Watch! 

Change the percent into a fraction. 

70%

 70

100

10

10

 7

10

Use your white board to solve!
Write 85% as a fraction

1. 85/100
2. 17/50
3. 14/25
4. 8/10

Percent of a Quantity 

Percent: A ratio that is compares a number to 100. (80%)

Quantity: An amount 

80% of 100 

Method 1 

Draw a bar model!  

Bar Model

1. Read the problem.

2. Draw a number line labeled with percents. 

3. Draw and label your bars.

Example 1