Grade 4 - Progress in Mathematics

Update your skills. See page 17.

Work with Metric Units

6-7

The millimeter (mm)

and the kilometer (km)

are other metric units

of length.

A dime is about It takes about 15 minutes

1 millimeter thick. to walk 1 kilometer.

Multiply:

4 km
(4 1000 ) m

4 km
4000 m

3000  4000

So 3000 m4 km.

Divide:

40 cm
(40 10 ) dm

40 cm
4 dm

4  3

So 40 cm3 dm.

Make a table or compute

to rename units.

Compare: 3000 m 4 km

Make a table:

3 4 So 3000 m4 km.

?

m 1000 2000 3000

km 1 2 3

Compare: 40 cm 3 dm

Make a table:

4 3 So 40 cm3 dm.

?

10 millimeters (mm) 
1 centimeter (cm)

100 millimeters (mm) 
1 decimeter (dm)

10 decimeters (dm) 
1 meter (m)

1000 meters (m) 
1 kilometer (km)

Think

1 km 
 1000 m

Think

1 dm 
 10 cm

cm 10 20 30 40

dm 1 2 3 4

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