Review Table of units of length

**Lesson 1:** Write the appropriate decimals in the dot

a. \(3dm = \frac{3}{{10}}dm = …m\) b. \(7cm = \frac{7}{{100}}m = …m\)

c. \(5dm = \frac{5}{{10}}m = …m\) d. \(5cm = \frac{5}{{100}}m = …m\)

e. \(3mm = \frac{3}{{1000}}m = …m\) f. \(7g = \frac{7}{{1000}}kg = …kg\)

**Solution**

a. \(3dm = \frac{3}{{10}}dm = 0.3m\) b. \(7cm = \frac{7}{{100}}m = 0.07m\)

c. \(5dm = \frac{5}{{10}}m = 0.5m\) d. \(5cm = \frac{5}{{100}}m = 0.05m\)

e. \(3mm = \frac{3}{{1000}}m = 0.003m\) f. \(7g = \frac{7}{{1000}}kg = 0.007kg\)

**Lesson 2:** Write length measurements as decimals:

a. Kilometers 5km472m; 8km,15m; 5km5m; 400m; 60m4cm

b. Meters 6,987km; 5.52km; 8.07km; 40dm

c. Gasoline 4.2dm; 5.33m; 9.6m; 20.45m; 5,486m

**Solution**

a. Kilometers

5km472m = 5.472km

8km15m = 8,015km

5km5m = 5.005km

400m=0.4km

60m4cm = 0.06004km

b. Meters

6,987km = 6987m

5.52km = 5520m

8.07km= 8070m

40dm = 4m

c. Centimeters

4.2dm = 42cm

5.33m = 533cm

9.6m = 960cm

20.45m = 2045cm

5.486m = 548.6cm

**Lesson 3:** Write the following measurements in meters

a. 7,753km; 77.53km; 97cm

b. 8.07km; 8,007km; 89dm

**Solution**

a. 7,753km = 7753m; 77.53km= 77530m; 97cm = 0.97m

b. 8.07km = 8070m; 8,007km= 8007m; 89dm = 8.9m

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