1.	Find the product 4 · 6 · 5 mentally.
		A.	100	B.	20
		C.	80	D.	120
		Hint
	2.	Name the property shown by the statement 6(2m) = (6 · 2)m.
		A.	Associative Property of Addition
		B.	Commutative Property of Addition
		C.	Commutative Property of Multiplication
		D.	Associative Property of Multiplication
		Hint
	3.	Find 50 · (13 · 2) mentally.
		A.	750	B.	1300
		C.	130	D.	1200
		Hint
	4.	Simplify (r + 6) + 27.
		A.	r + 33	B.	6r + 27
		C.	r + 21	D.	33r
		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