Question

Express as centimetre (cm) using decimals:

(i) 5 mm
(ii) 60 mm
(iii) 175 mm
(iv) 4cm 5 mm

Answer 1

(i) 5 mm
We know that 10 mm = 1 cm.
Therefore, 1 mm = 1/10 cm.
5 mm = 5/10= 0.5 cm

(ii) 60 mm
We know that 10 mm = 1 cm.
Therefore, 1 mm = 1/10 cm.
60 mm = 60/10 = 6 cm

(iii) 175 mm
We know that 10 mm = 1 cm.
Therefore, 1 mm = 1/10 cm.
175 mm = 175/10 = 17.5 cm

(iv) 4 cm 5 mm
We know that 10 mm = 1 cm.
Therefore, 1 mm = 1/10 cm.
4 cm 5 mm = $4+\frac{5}{10}$
= 4.5 cm