1. Which is an example of the associative property?

A. x + 5 = 5 + x
B. (x + 3) + 7 = x + (3 + 7)
C. 3 • (x + 5) = 3 • x + 15
D. If x = a, and a = 7, then x = 7.

2. Which is an example of the distributive property?
9 • (t + 5) = 9t + 45
9 • (t + 5) = (t + 5) • 9
9 • (t + 5) = (9 • t) + 5
9 • (t + 5) = 9t + 5

3. Identify the property shown
transitive
associative
commutative
distributive

4. Which property justifies this statement?
2 + (8 + 9) = (2 + 8) + 9
transitive
commutative
distributive
associative

5. Which property is shown?
–7 + 0 = –7
A. distributive property
B. associative property of multiplication
C. commutative property of addition
D. identity property of addition