1.	What is the least common multiple of 4, 5, and 16?
		A.	80	B.	16
		C.	160	D.	64
		Hint
	2.	Find the sum (-4) + 6.
		A.	10	B.	-10
		C.	2	D.	-2
		Hint
	3.	Find the difference of (-2) and 5.
		A.	7	B.	-7
		C.	3	D.	-3
		Hint
	4.	Divide -56 by -4.
		A.	-14	B.	16
		C.	14	D.	-13
		Hint
	5.	Find the solution for 12r = -132.
		A.	-12	B.	-11
		C.	-120	D.	-144
		Hint
	6.	Find the least common multiple of 15 and 6.
		A.	15	B.	60
		C.	30	D.	45
		Hint
	7.	Find 6 + (–10).
		A.	–16	B.	16
		C.	–4	D.	4
		Hint
	8.	Find the sum 16 + (-3).
		A.	19	B.	-13
		C.	-19	D.	13
		Hint
	9.	Subtract 6 – 12.
		A.	6	B.	18
		C.	-6	D.	-18
		Hint
	10.	Multiply –8(-4).
		A.	-12	B.	-32
		C.	32	D.	12
		Hint