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2.5: Identify and Apply Number Properties in Decimal Operations

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

Addend

An addend is the number being added in an addition problem.

Associative Property

The associative property states that you can change the groupings of numbers being added or multiplied without changing the sum. For example: (2+3) + 4 = 2 + (3+4), and (2 X 3) X 4 = 2 X (3 X 4).

Commutative Property

The commutative property states that the order in which two numbers are added or multiplied does not affect the sum or product. For example a+b=b+a \text{ and\,} (a)(b)=(b)(a).

Property

A property is a rule that works for a given set of numbers.

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Date Created:
Dec 19, 2012
Last Modified:
Sep 01, 2016
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MAT.ARI.200.L.1