Page 125 - New Medley 3 Semester 2

Converting Centimetres into Metres and Centimetres

100 cm = 1 m

Example 2: Convert the following into metres and centimetres.

(a) 800 cm (b) 3500 cm (c) 4250 cm (d) 4208 cm

Solution: (a) 800 cm = (800 ÷ 100) m = 8 m

(b) 3500 cm = (3500 ÷ 100) m = 35 m

(c) 4250 cm = (4200 + 50) cm = 4200 cm + 50 cm

= 4200 ÷ 100 cm + 50 cm = 42 m 50 cm

(  100 cm = 1 m)

(d) 4208 cm = (4200 + 8) cm = 4200 cm + 8 cm

= (4200 ÷ 100) cm + 8 cm = 42 m 8 cm

1
( 1 cm = m)
100
Converting Kilometres into Metres

1 km = 1000 m Mind it!

Example 3: Convert the following into metres.   Multiply the number of

(a) 7 km (b) 6 km 260 m kilometres by 1000 to
convert it into metres.
Solution: (a) 7 km = 7 × 1000 m = 7000 m

(b) 6 km 260 m = (6 × 1000 + 260) m = (6000 + 260) m
= 6260 m

Converting Metres into Kilometres and Metres

Example 4: Convert the following into kilometres and metres.
(a) 7000 m (b) 4755 m

Solution: (a) 7000 m = 7000 ÷ 1000 m = 7 km ( 1000 m = 1 km)

(b) 4755 m = (4000 + 755) m = 4000 m + 755 m

1
= (4000 ÷ 1000) km + 755 m ( 1 m = km)
1000
= 4 km 755 m

123