1.	The equation x + 3 = 5 is modeled below. To solve this problem using the model, what should you do first?
		A.	Remove 3 positive counters from each side of the mat.
		B.	Add 3 positive counters to each side of the mat.
		C.	Add 5 negative counters to the left side of the mat.
		D.	Remove 5 positive counters from the right side of the mat.
		Hint
	2.	The sum of the measures of the angles of a triangle is 180°. Find the missing measure.
		A.	100	B.	80
		C.	90	D.	75
		Hint
	3.	Solve x + 9 = 11.
		A.	9	B.	2
		C.	-2	D.	11
		Hint
	4.	Solve 1 = p - 16.
		A.	16	B.	-15
		C.	17	D.	1
		Hint
	5.	Solve 3.2 + y = 8.7.
		A.	-3.2	B.	5.5
		C.	11.9	D.	8.7
		Hint