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Keni · Answer 1 · 2015-08-09T06:09:19+0000

An operation is associative if you can group numbers in any way without changing the answer. It doesn't matter how you combine them, the answer will always be the same.

$a + (b + c) = (a + b) + c \\ \\ 19+(11+37) =(19+11)+37 \\\\19+48=30+37\\\\67=67$

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