Ex 3.3, 4 - Chapter 3 Class 6 Playing with Numbers - Part 6

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  1. Chapter 3 Class 6 Playing with Numbers
  2. Serial order wise

Transcript

Ex 3.3, 4 Using divisibility tests, determine which of the following numbers are divisible by 11: (e) 10000001 1 0 0 0 0 0 0 1 Sum of digits at odd Places = 1 + 0 + 0 + 0 = 1 Sum of digits at even Places = 0 + 0 + 0 + 1 = 1 Difference = 1 − 1 = 0 Since the difference is 0 ∴ 10000001 is divisible by 11

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.