# Operations with Real Numbers

## Add, subtract, multiply, and divide whole numbers, integers, rational numbers, and irrational numbers.

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 Real Number Addition

by CK-12 //at grade
This concept reviews the properties of addition that apply to real numbers.
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6
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## Properties of Real Number Multiplication

by CK-12 //at grade
This concept reviews the properties of multiplication that apply to real numbers.
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3
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## SLT 1 Explore the nature of inverse operations.

by MCPS Math //at grade
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• Video

## Properties of Real Numbers

by Jaisel Sandhu //at grade
A discussion of properties of real numbers including discussions on the commutative property, associative property, distributive property of multiplication over addition, identities for addition and multiplication, and additive or multiplicative inverses.
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