1.	Solve x + 4 = 7.
		A.	11	B.	3
		C.	–11	D.	–3
		Hint
	2.	Solve m + 2 = 7.
		A.	5	B.	–9
		C.	–5	D.	9
		Hint
	3.	Solve m + 2 = 7.
		A.	9	B.	–9
		C.	5	D.	–5
		Hint
	4.	Solve a + 6 = –2.
		A.	–8	B.	8
		C.	4	D.	–4
		Hint
	5.	Decide which addition equation the model represents. Then solve the equation.
		A.	x + 1 = 5; x = 6
		B.	x + 1 = 5; x = 4
		C.	x + 5 = 1; x = 6
		D.	x + 5 = 1; x = –4
		Hint