Ex 3.3, 2 - Determine which numbers are divisible by 4; by 8 (a) 572

Ex 3.3, 2 - Chapter 3 Class 6 Playing with Numbers - Part 2

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

Transcript

Ex 3.3, 2 Using divisibility tests, determine which of the following numbers are divisible by 4; by 8: (a) 572 Divisibility by 4 If last 2 digits are divisible by 4 Then, number is divisible by 4 Divisibility by 8 If last 3 digits are divisible by 8 Then, number is divisible by 8 Divisibility by 8 If last 3 digits are divisible by 8 Then, number is divisible by 8 Divisibility by 4 Last 2 digits are 72 Since remainder is 0, 72 is divisible by 4 ∴ 572 is divisible by 4 Divisibility by 8 Last 3 digits are 572 Since remainder is not 0 ∴ 572 is not divisible by 8

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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.