1.	What is the least common multiple of 4, 5, and 16?
		A.	64	B.	160
		C.	80	D.	16
		Hint
	2.	Find the difference of (-2) and 5.
		A.	-7	B.	-3
		C.	3	D.	7
		Hint
	3.	Find the solution for the equation w - 13 = -4.
		A.	-17	B.	-9
		C.	17	D.	9
		Hint
	4.	Find 6 + (–10).
		A.	–4	B.	–16
		C.	16	D.	4
		Hint
	5.	Find the sum 16 + (-3).
		A.	19	B.	-19
		C.	13	D.	-13
		Hint
	6.	Subtract 6 – 12.
		A.	18	B.	6
		C.	-6	D.	-18
		Hint
	7.	Find the difference –5 – (-11).
		A.	-6	B.	-16
		C.	6	D.	16
		Hint
	8.	Find the product 3(-12).
		A.	-36	B.	-9
		C.	9	D.	36
		Hint
	9.	Multiply –8(-4).
		A.	32	B.	12
		C.	-32	D.	-12
		Hint
	10.	Find the LCM of 25 and 30.
		A.	275	B.	750
		C.	120	D.	150
		Hint