Express as cm using decimals
(a) 5 mm
(b) 60 mm
(c) 164 mm
(d) 9 cm 8 mm
(e) 93 mm

Solution:

We know that 1 cm = 10 mm. To convert the mm into cm, we will divide by 10 and express it as decimals.

a) 5 mm

5 / 10 = 0.5 cm

b) 60 mm

60 / 10 = 6 cm

c) 164 mm

164/ 10 = 16. 4 cm

d) 9 cm 8 mm

(9 × 10 + 8) / 10 = 98 / 10 = 9.8 cm

e) 93 mm

93 / 10 = 9.3 cm

NCERT Solutions for Class 6 Maths Chapter 8 Exercise 8.4 Question 3

Express as cm using decimals (a) 5 mm (b) 60 mm (c) 164 mm (d) 9 cm 8 mm (e) 93 mm

Summary:

To express mm as cm we divide by 10. (a) 5 mm = 0.5 cm (b) 60 mm = 6 cm (c) 164 mm = 16.4 cm (d) 9 cm 8 mm = 9.8 cm (e) 93 mm = 9.3 cm

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