1.	Use estimation to place the decimal point in the product 18.7 × 21 = 3927.
		A.	3.927	B.	39.27
		C.	3927.0	D.	392.7
		Hint
	2.	A full tank of gasoline costs $17.45. If the car has a 12-gallon tank, approximately how much does a gallon of gasoline cost?
		A.	$1.45	B.	$0.145
		C.	$14.50	D.	$1.54
		Hint
	3.	Find 9.72 ÷ 1.2.
		A.	81	B.	810
		C.	8.1	D.	0.81
		Hint
	4.	Estimate 351.62 ÷ 4.9 by rounding.
		A.	90	B.	72
		C.	70	D.	97
		Hint
	5.	Multiply 0.032 × 2.1.
		A.	672	B.	0.0672
		C.	0.672	D.	0.064
		Hint