Page 159 - Touchpad Mathematics_Ver1.0_C4

 Length tells us how long something is. The distance between two points is called length.
 The standard unit of length is the metre. 1 km = 1000 m and 1 m = 100 cm.

 Shorter distances are measured in cm and m, while km is used for measuring larger
distances.

Learning LOGS

1. Fill in the blanks.

a. ___________ cm = 1 m b. 1 km = ___________ m

c. 100 cm = ___________ m d. 1000 m = ___________ km
2. Convert the following into centimetres.

a. 8 m b. 46 m c. 12 m 5 cm d. 38 m 85 cm

3. Convert the following into metres.
a. 7 km 209 m b. 3 km 486 m c. 4 km 876 m d. 3 km 911 m

4. Sania's family wants to buy goods from the Shopping Mall using the shortest

route. The distance between two locations placed next to each other is given.

a. Which route should the car take — Home to Shopping Mall via Temple or

Home to Shopping Mall via Bank? _________________

b. How much more distance will the car cover if Sania takes the longer route?
_________________

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Measurement of Length