1.	The equation x + 3 = 5 is modeled below. To solve this problem using the model, what should you do first?
		A.	Add 3 positive counters to each side of the mat.
		B.	Add 5 negative counters to the left side of the mat.
		C.	Remove 3 positive counters from each side of the mat.
		D.	Remove 5 positive counters from the right side of the mat.
		Hint
	2.	If you decrease a number by 4 the result is 3. Solve n – 4 = 3 to find the number?
		A.	–1	B.	6
		C.	1	D.	7
		Hint
	3.	Solve x + 3.57 = 6.87.
		A.	3.30	B.	3.20
		C.	2.43	D.	10.44
		Hint
	4.	Solve x + 9 = 11.
		A.	11	B.	-2
		C.	2	D.	9
		Hint
	5.	Solve 3.2 + y = 8.7.
		A.	11.9	B.	-3.2
		C.	8.7	D.	5.5
		Hint