1.	Find the sum -6 + 3.
		A.	9	B.	3
		C.	-3	D.	-9
		Hint
	2.	Find the sum
		A.		B.
		C.		D.
		Hint
	3.	Find the difference -3.35 - 6.21.
		A.	2.86	B.	-2.86
		C.	-9.56	D.	9.56
		Hint
	4.	What is the sum of –5 + (–7)
		A.	–12	B.	12
		C.	–2	D.	2
		Hint
	5.	Simplify –3.6 – (–2.1) + 4.8
		A.	3.3	B.	–0.9
		C.	–3.3	D.	0.369
		Hint