1.	Find the product 4 · 6 · 5 mentally.
		A.	80	B.	120
		C.	100	D.	20
		Hint
	2.	Simplify (p + 16) + 24.
		A.	16p + 24	B.	40p
		C.	p + (16 · 24)	D.	p + 40
		Hint
	3.	Simplify 5 · x · 10.
		A.	50x	B.	50 + x
		C.	15x	D.	15 + x
		Hint
	4.	Find 50 · (13 · 2) mentally.
		A.	750	B.	1300
		C.	1200	D.	130
		Hint
	5.	Which is not a valid property?
		A.	All of these are valid.
		B.	Associative Property of Multiplication
		C.	Associative Property of Addition
		D.	Associative Property of Subtraction
		Hint