1.	Use estimation to place the decimal point in the product 18.7 × 21 = 3927.
		A.	39.27	B.	392.7
		C.	3.927	D.	3927.0
		Hint
	2.
		A.	150	B.	15
		C.	0.15	D.	1.5
		Hint
	3.	Find 6 × 18.52.
		A.	111.02	B.	111.12
		C.	108.12	D.	1111.2
		Hint
	4.	Write 7.2 × 106 in standard form.
		A.	0.0000072	B.	72,000,000
		C.	7,200,000	D.	720,000
		Hint
	5.	Write 1.85 × 102 in standard form.
		A.	185	B.	1,850
		C.	1.85	D.	0.185
		Hint