1.	How many significant digits area in the number 0.009?
		A.	4	B.	2
		C.	1	D.	3
		Hint
	2.	Identify the precision unit of the scale.
		A.	1 pound	B.	5 pounds
		C.	10 pounds	D.	12 pound
		Hint
	3.	Find the sum of 5.5 meters, 5.27 meters, 6.4 meters, and 4.325 meters using the correct precision.
		A.	21 meters	B.	21.50 meters
		C.	21.495 meters	D.	21.5 meters
		Hint
	4.	Use the correct number of significant digits to find the area of the rectangle.
		A.	135.4 square centimeters	B.	135 square centimeters
		C.	140 square centimeters	D.	135.42 square centimeters
		Hint
	5.	Use the correct number of significant digits to find the area of the parallelogram.
		A.	41.225 square meters	B.	41.2 square meters
		C.	41 square meters	D.	41.23 square meters
		Hint