1.	Multiply 0.25 × 103.
		A.	25,000	B.	250
		C.	25	D.	0.00025
		Hint
	2.	Write 120,000,000 in scientific notation.
		A.	1.2×109	B.	1.2×108
		C.	12×107	D.	0.12×109
		Hint
	3.	Which symbol makes the following statement true? 7,500 ______ 7.5 × 103
		A.	=	B.	>
		C.		D.	<
		Hint
	4.	Use your calculator to evaluate the expression.6.2319
		A.	12.45 × 1015	B.	1.245 × 1019
		C.	1.245 × 1015	D.	12.45 × 1019
		Hint
	5.	Use your calculator to evaluate the expression. 7.3 × 1012 + 8.1 × 1012
		A.	1.54 × 1013	B.	59.13
		C.	15.4 × 1013	D.	5.913 × 1013
		Hint