Which number sentence shows the commutative property of addition?
7 + 6 = 6 + 7
What is missing for the following quantity to be true? 5x + 7y + 9a = __ + 5x + 9a
7y
Which number sentence shows the associative property of addition? Choose all that apply.
(3 + 9) + 5 = 3 + (9 + 5)
12 + (3 + 9) = (12 + 3) + 9
Use the distributive property to decide which of the following is equivalent to 2(3 + 5x)? Select all that apply.
2(3) + 2(5x)
6 + 10x
