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Course: 6th grade (Eureka Math/EngageNY) > Unit 1

Lesson 4: Topic D: Percents
Math
6th grade (Eureka Math/EngageNY)
Module 1: Ratios and unit rates
Topic D: Percents
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Converting decimals and percents review

Google Classroom
Review writing decimals as percents and percents as decimals.  Then, try some practice problems.  

What does percent mean?

Percent means 'per hundred.' So, we can replace a percent sign with 'per hundred.'
Example:
35%=35 per hundred=35100

Writing percents as decimals

To write a percent as a decimal, we divide the percent by 100.
Example 1
Let's convert 42% to a decimal:
42%=42 per hundred=42100
42100=42 hundredths
42%=0.42
Example 2
Let's convert 370% to a decimal:
370%=370 per hundred=370100
370100=370 hundredths
370%=3.7
Want to learn more about writing percents as decimals? Check out this video.

Practice

Problem 1A
Express the percent as a decimal.
92%
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi

Want to try more problems like this? Check out this exercise.

Writing decimals as percents

To write a decimal as a percent, we multiply the decimal by 100.
Example 1
Let's convert 0.03 to a percent:
0.03=3100=3 hundredths
0.03=3%
Example 2
Let's convert 5.8 to a percent:
5.8=580100=580 hundredths
5.8=580%
Want to learn more about writing decimals as percents? Check out this video.

Practice

Problem 2A
Express the decimal as a percent.
0.31
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
%

Want to try more problems like this? Check out this exercise.

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