Asked by Pinkfox

Which statement shows the associative property of addition?


(A)21 + 2y = 2y + 21

(B)(u + 7) + 13 = u + (7 + 13) .
(C)If m + 3 = 18, then 18 = m + 3.

(D)3⋅(5⋅x)=(3⋅5)⋅x
Answered by mathhelper
Associative property of addition tells us :

a + b + c
= (a + b) + c = a + (b + c)

do you see that pattern?
Answered by Pinkfox
I think it is A
Answered by Pinkfox
Or B?

Answered by mathhelper
Are you just guessing????

compare:

(u + 7) + 13 = u + (7 + 13)
(a + b) + c = a + (b + c)
Answered by Pinkfox
No, I am not guessing.
Answered by Pinkfox
Ya B???
Answered by Anonymous
(×+7)+1= associaltive property
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