1.	Use estimation to place the decimal point in the product 18.7 × 21 = 3927.
		A.	3.927	B.	392.7
		C.	3927.0	D.	39.27
		Hint
	2.	Evaluate 4x if x = 0.016.
		A.	0.64	B.	0.064
		C.	64	D.	6.4
		Hint
	3.	Find 8k if k = 0.5238.
		A.	5.285	B.	4.9231
		C.	4.1904	D.	3.483
		Hint
	4.	Find 3 × 0.019.
		A.	5.7	B.	0.57
		C.	57	D.	0.057
		Hint
	5.	Write 1.85 × 102 in standard form.
		A.	185	B.	1,850
		C.	1.85	D.	0.185
		Hint