Page 59 - Mathematics_Std_4

Conversion of small units of length into large units
Length measurements can be converted from small units to large
units. Use multiplication ( ÷) method when converting small units
into large units.
FOR ONLINE READING ONLY

Example 1

Convert 500 cm into metres.

Solution
Use the relationship between metre and centimetre

1 m = 100 cm

500 cm = 500 cm × 1 m
100 cm
= 5 m
Therefore, 500 cm is equal to 5 m.

Example 2

Convert 4500 m into kilometres and metres.

Solution

Use the relationship between kilometre and metre
m 4500 = m 4000 + m 500

Convert 4000 m into kilometre:

1 km = 1000 m

4000 m = 4000 m × 1km
1000 m

= 4 km
500 m is less than 1 km.

Therefore, 4500 m = 4 km 500 m.

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06/11/2024 17:17:08
MATHEMATICS STD 4 PB 2024.indd 52
MATHEMATICS STD 4 PB 2024.indd 52 06/11/2024 17:17:08