1.	What is the least common multiple of 4, 5, and 16?
		A.	64	B.	160
		C.	80	D.	16
		Hint
	2.	Solve c + 32 = 124.
		A.	92	B.	156
		C.	-156	D.	-92
		Hint
	3.	Find the solution for 12r = -132.
		A.	-11	B.	-144
		C.	-12	D.	-120
		Hint
	4.	Find the least common multiple of 15 and 6.
		A.	15	B.	30
		C.	45	D.	60
		Hint
	5.	Find 6 + (–10).
		A.	16	B.	–4
		C.	–16	D.	4
		Hint
	6.	Find the sum 16 + (-3).
		A.	-13	B.	19
		C.	-19	D.	13
		Hint
	7.	Find the difference –5 – (-11).
		A.	16	B.	-16
		C.	-6	D.	6
		Hint
	8.	Find the product 3(-12).
		A.	-36	B.	-9
		C.	36	D.	9
		Hint
	9.	Multiply –8(-4).
		A.	32	B.	12
		C.	-12	D.	-32
		Hint
	10.	Find the LCM of 25 and 30.
		A.	275	B.	750
		C.	120	D.	150
		Hint