1.	Name the property shown by the statement 6(2m) = (6 · 2)m.
		A.	Commutative Property of Addition
		B.	Associative Property of Addition
		C.	Commutative Property of Multiplication
		D.	Associative Property of Multiplication
		Hint
	2.	Simplify 5 · x · 10.
		A.	15x	B.	50x
		C.	15 + x	D.	50 + x
		Hint
	3.	Find 50 · (13 · 2) mentally.
		A.	1300	B.	130
		C.	750	D.	1200
		Hint
	4.	Simplify (r + 6) + 27.
		A.	r + 21	B.	6r + 27
		C.	33r	D.	r + 33
		Hint
	5.	Which is not a valid property?
		A.	Associative Property of Multiplication
		B.	Associative Property of Subtraction
		C.	Associative Property of Addition
		D.	All of these are valid.
		Hint