Page 74 - Fun with Mathematics 2

CONVERSION OF LENGTH

Metres into centimetres

As we know, 1 m = 100 cm. To convert m into cm, multiply by 100.

Convert 6 metres into centimetres.
l Relationship between metre and
6 × 100 = 600 cm centimetre

Convert 5 m and 12 cm into cm. 1 metre (m) = 100 centimetres (cm)
l
5 m 12 cm = 5 × 100 cm + 12 cm = 500 cm + 12 cm = 512 cm

Centimetres into metres
We know 100 cm = 1 m. To convert cm into m, divide by 100.

Convert 800 centimetres into metres.
l
800 cm = 8 m

Convert 175 centimetres into metres.
l
175 cm = 100 cm + 75 cm = 1 m 75 cm

4
Fill in the blanks.
(a) 7 m = 7 × 100 cm = ____ cm

(b) 9 m 10 cm = 9 × 100 cm + 10 cm = ____ cm

(c) 2 m 80 cm = 2 × 100 cm + 80 cm = ____ cm

(d) 10 m = 10 × ____ cm = ____ cm
4
(e) 6 m 5 cm = 6 × ____ cm + ____ cm = ____ cm

(f) 5 m 20 cm = ____ × 100 cm + ____ cm = ____ cm

(g) 8 m = ____ cm

5 Convert into metres and centimetres.

(a) 500 cm = ____ m (b) 286 cm = ____ m ____ cm

(c) 560 cm = ____ m ____ cm (d) 816 cm = ____ m ____ cm

(e) 600 cm = ____ m (f) 910 cm = ____ m ____ cm

(g) 676 cm = ____ m ____ cm (h) 4 00 cm = ____ m

(i) 718 cm = ____ m ____ cm (j) 9 44 cm = ____ m ____ cm

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