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# Percents

## Write percents as ratios and ratios as percents

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Recognize and Write Percents

by CK-12 //at grade
recognize and write percents as part of a whole out of 100
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8

## Understanding Percent

Identify equivalent ratios as fractions. decimals and percents. Convert fractions, decimals and percents.
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0

## Percents

by Rachael Irani //at grade
Recognize a percent as a ratio whose denominator is 100
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1

## Percents

by Jennifer Nicol //at grade
Recognize a percent as a ratio whose denominator is 100
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0

## Percents

by CK12 Math //at grade
Recognize a percent as a ratio whose denominator is 100
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0

## Recognize and Write Percent

by CK-12 //at grade
Learn to recognize and write percent.
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1

## Percents

by CK-12 //at grade
Defines percents and explores how to use them to describe real world situations such as test scores, quantities, and measurement.
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2
• PLIX

## Percents: Play Checkers

by CK-12 //at grade
Percents Interactive
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• Video

## SAT Math (Number and Operations) - Practice 2.1

by CK-12 //at grade
Overview
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• 5
• Real World Application

## Winning Percentages

by CK-12 //at grade
Discover what it takes to win the presidential election.
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0
• Real World Application

## Breathing Room

by CK-12 //at grade
Discover why more oxygen in the air is not always better for you.
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0
• Real World Application

## The Dirty Dozen

by CK-12 //at grade
Find out what percent of apples tested positive for pesticides.
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0