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