1.	Which statement illustrates the commutative property of addition?
		A.	(5 + 3) + 6 = (3 + 5) + 6	B.	(5 + 3) + 6 = 8 + 6
		C.	(5 + 3) + 6 = 5 + (3 + 6)	D.	(5 + 3) + 6 = 14
		Hint
	2.	Simplify 3 + 2(xy+ 3z) + 4xy.
		A.	6xy + 6z + 3	B.	6xy + 3z + 3
		C.	5xy + 3z + 3	D.	9xy + 15z
		Hint
	3.	Simplify 12f + 6(3 + 4f).
		A.	36f + 18	B.	34f
		C.	16f + 18	D.	54f
		Hint
	4.	Evaluate 2 × 17 × 5.
		A.	170	B.	190
		C.	180	D.	160
		Hint
	5.	Evaluate 0.75 + 2.2 + 0.25 + 0.8.
		A.	6	B.	5
		C.	4	D.	3
		Hint