Question

name______ date__ class period____
metric unit conversion
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directions: you may look at youtube.com to see how do to si unit conversions. put the letters on the blank or it will not be graded.

1. 133 m = ______ mm

a) 13300 b) 133 c) .133 d) 133000

1. 8.44 cm = ______ dm

a) 844 b) .844 c) 8440 d) 84400

1. 1.554 km = ______ cm

a) 155400 b) 15540 c) 145500 d) 1554000

1. 0.45 hectoliters = ______ l

a) 45 b) .0045 c) .045 d) 450

1. 30 g = ______ kg

a) 0.030 b) 0.003 c) 3 d) 300

1. 3.3 cm = ______ mm

a) 4 b) 0.33 c) 3.33 d) 33

1. 20 mm = ______ km

a) 0.0002. b) 0.0020 c) 0.00002 d) not this one

1. 3 cm = ______ km

a) 0.0000003 b) 00.003 c) 0.00003 d) almost done

1. when measuring volume, the unit that you use is

a) grams b) milliliters c) meters d) none of the above

1. when measuring length, the unit that you should use is

a) meters b) liters c) grams d) none of the above

Explanation:

Question 1

Step1: Recall metric prefixes (m to mm: 1m = 1000mm)

$133\ m\times1000\ \frac{mm}{m}$

Step2: Calculate the conversion

$133\times1000 = 133000\ mm$

Step1: Recall metric prefixes (cm to dm: 1dm = 10cm, so 1cm = 0.1dm)

$8.44\ cm\times0.1\ \frac{dm}{cm}$

Step2: Calculate the conversion

$8.44\times0.1 = 0.844\ dm$

Step1: Recall metric prefixes (km to cm: 1km = 1000m, 1m = 100cm, so 1km = 100000cm)

$1.554\ km\times100000\ \frac{cm}{km}$

Step2: Calculate the conversion

$1.554\times100000 = 155400\ cm$

Answer:

D

Question 2