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# Properties of Rational Numbers versus Irrational Numbers

## Differentiate between numbers that can be written as a fraction and numbers that can't be

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.
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## Properties of Rational Numbers versus Irrational Numbers

by CK-12 //at grade
Differentiate between rational and irrational numbers and classify real numbers.
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## Properties of Rational Numbers versus Irrational Numbers

by CK-12 //at grade
Learn how to recognize rational vs. irrational numbers.
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## Identifying Sets of Real Numbers

by CK-12 //at grade
Describes the sets that a real number might belong to.
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6
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## Irrational Numbers: A Sample Application

by CK-12 //at grade
This video demonstrates a sample use of irrational numbers.
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## Irrational Numbers: An Explanation of the Concept

by CK-12 //at grade
This video provides an explanation of the concept of irrational numbers.
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• Real World Application

## Pi in the Sky

by CK-12 //at grade
Find out why some people consider March 14th a holiday.
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