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19 November, 21:08

Lance wants to find the total length of three boards. he uses the expression 3 1/2+2+4 1/2 how can Lance rewrite the expression using both the associative and community properties of addition

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  1. 19 November, 21:34
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    5 1/2 + 4 1/2 = 10

    because 5+4 = 9 and 1/2 + 1/2 = 1
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