1.	Write the unit of length that you would use to measure the length of a pencil.
		A.	kilometer	B.	millimeter
		C.	centimeter	D.	meter
		Hint
	2.	Theo is reorganizing his room. What unit of length should he use to measure the furniture in his room?
		A.	kilometer	B.	centimeter
		C.	meter	D.	millimeter
		Hint
	3.	Write the unit of length that you would use to measure the length of an ant?
		A.	kilometer	B.	millimeter
		C.	centimeter	D.	meter
		Hint
	4.	Which is the best estimate for the measurement of the line segment?
		A.	4.0 cm	B.	0.5 km
		C.	0.5 m	D.	4.0 mm
		Hint
	5.	Which is the best estimate for the height of a classroom door?
		A.	24 cm	B.	24 m
		C.	2.4 m	D.	2 km
		Hint