Table of units for measuring length

**Lesson 1: **a) The line segment AB measures 1m and 9cm, abbreviated as 1m 9cm read as one meter nine centimeters

b) Write the correct number in the dot (follow the pattern)

3m 4dm = 30dm + 4dm = 34dm 3m 4cm = 300cm + 4cm = 304cm |

3m 2cm = … cm

4m 7dm = … dm

4m 7cm = … cm

9m 3cm = …cm

9m 3dm = … dm

**Solution guide**

a) Visualize and read lengths containing two units of measure.

b) Based on the sample method, convert each unit to the required unit and then add the two numbers together.

3m 2cm = 302cm

4m 7dm = 47dm

4m 7cm = 407cm

9m 3cm = 903cm

9m 3dm = 93dm.

**Lesson 2: **Calculate

a) 8 damage + 5 damage = b) 720 m + 43 m =

57 hm – 28 hm = 403cm – 52 cm =

12 km x 4 = 27 mm : 3 =

**Solution guide**

Perform calculations with numbers and then write units after the result you just found.

a) 8 damage + 5 damage = 13 damage

57 hm – 28 hm = 29 hm

12 km x 4 = 48 km

b) 720 m + 43 m = 763 m

403cm – 52cm = 351cm

27 mm : 3 = 9 mm

**Lesson 3: **Put < , > = in the dot

6m 3cm … 7m 5m 6cm … 5m

6m 3cm … 6m 5m 6cm … 6m

6m 3cm … 630cm 5m 6cm … 506cm

6m 3cm … 603cm 5m 6cm … 560cm.

**Solution guide**

Convert the numbers to the same unit and then compare.

6m 3cm < 7m 5m 6cm > 5m

6m 3cm > 6m 5m 6cm < 6m

6m 3cm < 630cm 5m 6cm = 506cm

6m 3cm = 603cm 5m 6cm < 560cm.

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