Question

Please help!!

Which number sentence shows the associative property of addition? Choose all that apply.



3z + 9p = 9p + 3z


3x(5 + 2) = 3x(5) + 3x(2)


3 + (2 + 8) = (3 + 2) + 8


(6 + 1) + 9 = 6 + (1 + 9)

Answer 1

The associative property of addition is pretty much just any numbers in place of these: a + (b + c) = (a + b) + c. Therefore, your answer would be d) (6 + 1) + 9 = 6 + (1 + 9)