Ex 8.1, 10 (a) The length of Ramesh’s notebook is 9 cm 5 mm . What will be its length in cm? Length of notebook = 9 cm 5 mm = 9 cm + 5 mm = 9 cm + 5 × 1 mm = 9 cm + 5 × 1/10 cm = 9 cm + 5/10 cm = ("9 + " 5/10) cm = ((9 × 10 + 5)/10) cm = (90 + 5)/10 cm = 95/10 cm = 9.5 cm

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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