Question

Write as a decimal fraction of a cm (a) 5 mm (b) 8mm

Answer 1

1 mm = 0.1 cm

(a) 5 mm

5 × 0.1 = 0.5 

Fraction :- 5/0.5
5 ÷ 0.5 =10
Decimal:- 10

(b) 8 mm

8 × 0.1 = 0.8

Fraction:- 8/0.8
8 ÷ 0.8 = 10
Decimal:- 10

Answer 2

a. 5 mm
5/0.5
10

b. 8 mm
8/0.8
10