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

User Bruno Gelb
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1 Answer

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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
User Pernell
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