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8 January, 00:33

Lance wants to find the total length of 3 boards. He uses the expression 3 1/2 + (2 + 4 1/2). How can Lance rewrite the expression using both the Associative and Commutative Properties of Addition?

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  1. 8 January, 00:42
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    Associative: (3 1/2 + 2) + 4 1/2

    Commutative: (2 + 4 1/2) + 3 1/2
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