1.	What subtraction problem is represented by the model?
		A.	4 + 3 = 7	B.	3 - 4 = -1
		C.	4 – 3 = 1	D.	–4 + 3 = -1
		Hint
	2.	Solve y = -7 - (-15).
		A.	-22	B.	8
		C.	105	D.	9
		Hint
	3.	Evaluate x - y if x = 2 and y = 7.
		A.	-9	B.	-5
		C.	5	D.	9
		Hint
	4.	Solve x = -9 - (-7).
		A.	2	B.	-2
		C.	16	D.	-16
		Hint
	5.	Evaluate p – q if p = -6 and q = 14.
		A.	-20	B.	-8
		C.	8	D.	20
		Hint