#### Answer

grouping
associative

#### Work Step by Step

The associative property of addition says that, when more than 2 numbers are being summed, it does not matter which numbers are grouped together to be summed first.
$(a+b)+c=a+(b+c)$

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

grouping
associative

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