1.	Round 37.507 to the nearest whole number.
		A.	38	B.	37.5
		C.	37	D.	37.51
		Hint
	2.	Estimate the sum of 32.56 and 53.47.
		A.	85	B.	84
		C.	86	D.	87
		Hint
	3.	Use rounding to estimate 12 + 7
		A.	20	B.	21
		C.	18	D.	19
		Hint
	4.	Approximate the difference of and
		A.		B.
		C.		D.	0
		Hint
	5.	Estimate the sum 42 + 156 + 191 + 212.
		A.	610	B.	590
		C.	600	D.	620
		Hint