Ex 3.3, 5 - Chapter 3 Class 6 Playing with Numbers

Last updated at May 26, 2023 by Teachoo

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Ex 3.3, 5 Write the smallest digit and the greatest digit in the blank space of each of the following numbers so that the number formed is divisible by 3 : (a) __ 6724 We know that,
A Number is divisible by 3, if sum of digits is divisible by 3
__ 6724
Sum of digits = __ + 6 + 7 + 2 + 4
= __ + 19
Let us check different values of blank digit
& check if number is divisible by 3
Sum of digits = __ + 19
Smallest digit = 2
Greatest digit = 8
Ex 3.3, 5 Write the smallest digit and the greatest digit in the blank space of each of the following numbers so that the number formed is divisible by 3 : (b) 4765 __ 2We know that,
A Number is divisible by 3, if sum of digits is divisible by 3
4765 __ 2
Sum of digits = 4 + 7 + 6 + 5 + __ + 2
= 24 + __
Let us check different values of blank digit
& check if number is divisible by 3
Sum of digits = 24 + __
Smallest digit = 0
Greatest digit = 9

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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