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Activity
Purplemath: Basic Number Properties: Associative, Commutative, and Distributive Activity
Purple Math

Purplemath: Basic Number Properties: Associative, Commutative, and Distributive

For Students 9th - 10th Standards
This Purplemath lesson includes many different number properties explained by using examples.
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PPT
Mc Graw Hill: The Additive Inverse Property PPT
McGraw Hill

Mc Graw Hill: The Additive Inverse Property

For Students 9th - 10th
The sum of any number and its additive inverse is always a zero. This site gives you the rule for this property.
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