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5 votes
Which statement shows the associative property of addition?

A.
If m + 3 = 18, then 18 = m + 3

B.
(u + 7) + 13 = u + (7 + 13)

C.
21 + 2y = 2y + 21

D.
3 · (5 · x) = (3 · 5) · x

User Angloos
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1 Answer

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The associative property of addition is shown by answer B.
User Facundo Casco
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