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15 March, 15:07

How can the associative property be used to mentally solve 48+82?

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  1. 15 March, 16:48
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    (40+80) + (8+2)

    120+10

    130

    your answer would be 130

    you group 40 and 80 and get the answer and then group 8 and 2

    get answer to both then and then you add them together for the answer
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