1.	Multiply 0.25 × 103.
		A.	0.00025	B.	25,000
		C.	250	D.	25
		Hint
	2.	Write 2,564,000 in scientific notation.
		A.	2,564×103	B.	2.564×105
		C.	25.64×105	D.	2.564×106
		Hint
	3.	Write 120,000,000 in scientific notation.
		A.	1.2×109	B.	12×107
		C.	1.2×108	D.	0.12×109
		Hint
	4.	Use your calculator to evaluate the expression. 7.3 × 1012 + 8.1 × 1012
		A.	15.4 × 1013	B.	59.13
		C.	5.913 × 1013	D.	1.54 × 1013
		Hint
	5.	Use your calculator to evaluate the expression. (5.9 × 108) × (2.4 × 109)
		A.	1.416 × 1016	B.	1.416 × 1018
		C.	1.416 × 1017	D.	1.416 × 1012
		Hint