1.	Evaluate 52.
		A.	10	B.	30
		C.	32	D.	25
		Hint
	2.	Evaluate 34.
		A.	12	B.	64
		C.	81	D.	3
		Hint
	3.	Express 47.5 × 10-5 in scientific notation.
		A.	0.475 × 10-3	B.	4.75 × 10-4
		C.	4.75 × 10-6	D.	475 × 10-6
		Hint
	4.	Express 0.034 × 107 in scientific notation.
		A.	3.4 × 105	B.	0.34 × 106
		C.	34 × 104	D.	3.4 × 109
		Hint
	5.	Express 0.000033 in scientific notation.
		A.	3.3 × 10-6	B.	3.3 × 10-5
		C.	3.3 × 10-4	D.	3.3 × 105
		Hint