1.	What is the least common multiple of 4, 5, and 16?
		A.	160	B.	16
		C.	64	D.	80
		Hint
	2.	Find the sum (-4) + 6.
		A.	10	B.	2
		C.	-10	D.	-2
		Hint
	3.	Find the difference of (-2) and 5.
		A.	3	B.	-3
		C.	7	D.	-7
		Hint
	4.	Divide -56 by -4.
		A.	14	B.	-14
		C.	-13	D.	16
		Hint
	5.	Find the least common multiple of 15 and 6.
		A.	15	B.	30
		C.	60	D.	45
		Hint
	6.	Find 6 + (–10).
		A.	–4	B.	–16
		C.	16	D.	4
		Hint
	7.	Find the difference –5 – (-11).
		A.	-16	B.	6
		C.	16	D.	-6
		Hint
	8.	Find the product 3(-12).
		A.	-36	B.	-9
		C.	9	D.	36
		Hint
	9.	Multiply –8(-4).
		A.	-12	B.	12
		C.	32	D.	-32
		Hint
	10.	Find the LCM of 25 and 30.
		A.	275	B.	750
		C.	120	D.	150
		Hint