Last updated at Sept. 9, 2021 by Teachoo

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

Ex 3.3

Ex 3.3, 1

Ex 3.3, 2 (a) You are here

Ex 3.3, 2 (b)

Ex 3.3, 2 (c)

Ex 3.3, 2 (d)

Ex 3.3, 2 (e)

Ex 3.3, 2 (f)

Ex 3.3, 2 (g)

Ex 3.3, 2 (h)

Ex 3.3, 2 (i)

Ex 3.3, 2 (j)

Ex 3.3, 3 (a)

Ex 3.3, 3 (b)

Ex 3.3, 3 (c)

Ex 3.3, 3 (d)

Ex 3.3, 3 (e)

Ex 3.3, 3 (f)

Ex 3.3, 3 (g)

Ex 3.3, 3 (h)

Ex 3.3, 3 (i)

Ex 3.3, 3 (j)

Ex 3.3, 4 (a)

Ex 3.3, 4 (b)

Ex 3.3, 4 (c)

Ex 3.3, 4 (d)

Ex 3.3, 4 (e)

Ex 3.3, 4 (f)

Ex 3.3, 5 Important

Ex 3.3, 6 Important

About the Author

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.