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.	-3
		C.	7	D.	3
		Hint
	4.	Divide -56 by -4.
		A.	-14	B.	16
		C.	14	D.	-13
		Hint
	5.	Solve c + 32 = 124.
		A.	-156	B.	92
		C.	-92	D.	156
		Hint
	6.	Find the solution for 12r = -132.
		A.	-120	B.	-11
		C.	-12	D.	-144
		Hint
	7.	Find the least common multiple of 15 and 6.
		A.	60	B.	15
		C.	30	D.	45
		Hint
	8.	Subtract 6 – 12.
		A.	6	B.	-6
		C.	-18	D.	18
		Hint
	9.	Find the difference –5 – (-11).
		A.	6	B.	16
		C.	-6	D.	-16
		Hint
	10.	Find the product 3(-12).
		A.	36	B.	-36
		C.	-9	D.	9
		Hint