
	1.	Use models to write an expression and a number sentence. Then solve. There were 8 plates on a table. A waiter took 5 away. How many were left?
		A.	5 + 3; 5 + 3 = 8	B.	5 − 8; 5 − 8 = 3
		C.	3 + 5; 3 + 5 = 8	D.	8 − 5; 8 − 5 = 3
		Hint

	2.	Use models to write an expression and a number sentence. Then solve. A secretary made 12 photocopies. Then she made 4 more. How many photocopies did she make in all?
		A.	4 + 8; 4 + 8 = 12	B.	12 − 4; 12 − 4 = 8
		C.	12 + 4; 12 + 4 = 16	D.	12 + 4; 12 + 4 = 18
		Hint

	3.	The − symbol makes which statement true?
		A.	45 + 10 = 25 ___ 30	B.	42 − 30 = 5 ___ 7
		C.	50 ___ 2 = 62 − 10	D.	33 ___ 11 = 21 + 1
		Hint

	4.	The − symbol makes which statement true?
		A.	4 ___ 8 = 21 − 9	B.	8 = 14 ___ 6
		C.	12 ___ 5 = 17	D.	3 + 6 = 4 ___ 5
		Hint

	5.	Use counters to show whether + or − makes the number sentence 8 ___ 6 = 2 true. Explain.
		A.	−; 8 counters − 6 counters = 2 counters left.	B.	+; 2 counters + 6 counters = 8 counters altogether.
		C.	+; 6 counters + 2 counters = 8 counters altogether.	D.	−; 6 counters − 8 counters = 2 counters left.
		Hint