1.	Find –1 + 2.
		A.	1	B.	–3
		C.	–1	D.	3
		Hint
	2.	Find 2 – (–5).
		A.	3	B.	–3
		C.	–7	D.	7
		Hint
	3.	Find –2 – (–7).
		A.	–9	B.	5
		C.	9	D.	–5
		Hint
	4.	Find an addition and subtraction equation that represents the number lines below.
		A.	–6 + –1 = –7 –6 – 1 = –7	B.	–6 + 7 = 1 –6 – –7 = 1
		C.	1 + –6 = –5 1 – 6 = –5	D.	–6 + 1 = 5 –6 – –1 = 5
		Hint
	5.	The formula for converting Celsius temperatures (C) to Kelvin (K) temperatures is K = C + 273. Find the Kelvin scale temperature of –98°C.
		A.	–175 K	B.	–371 K
		C.	371 K	D.	175 K
		Hint