Page 134 - Maths Class 03

H To convert centimetre into metre, write first two digits from right to

left in centimetre and rest in metre.

H To convert metre into kilometre, write first 3 digits from right to left in

metre and rest in kilometre.

Example : Convert into centimetres.

a. 3 m = 3 × 100 cm = 300 cm

b. 6 m = 6 × 100 cm = 600 cm

c. 8 m = 8 × 100 cm = 800 cm

Addition and Subtraction of Length

Example : Add.

a. 36 cm + 43 cm b. 32 m 36 cm + 16 m 43 cm

cm m cm

3 6 3 2 2 5

+ 4 3 + 1 6 3 4

7 9 4 8 5 9

\ 79 cm \ 48 m 59 cm

c. 81 km + 18 km d. 72 km 925 m + 18 km 98 m

km km m

8 1 7 2 9 2 5

+ 1 8 + 1 8 9 8

9 9 9 1 0 2 3

\ 99 km \ 91 km 023 m

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