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Ex 3.3, 6 - Chapter 3 Class 6 Playing with Numbers
Last updated at March 23, 2023 by Teachoo
Ex 3.3
Ex 3.3, 1
Ex 3.3, 2 (a) Important
Ex 3.3, 2 (b)
Ex 3.3, 2 (c) Important
Ex 3.3, 2 (d)
Ex 3.3, 2 (e)
Ex 3.3, 2 (f) Important
Ex 3.3, 2 (g)
Ex 3.3, 2 (h) Important
Ex 3.3, 2 (i)
Ex 3.3, 2 (j) Important
Ex 3.3, 3 (a) Important
Ex 3.3, 3 (b)
Ex 3.3, 3 (c) Important
Ex 3.3, 3 (d)
Ex 3.3, 3 (e) Important
Ex 3.3, 3 (f)
Ex 3.3, 3 (g) Important
Ex 3.3, 3 (h)
Ex 3.3, 3 (i) Important
Ex 3.3, 3 (j)
Ex 3.3, 4 (a)
Ex 3.3, 4 (b) Important
Ex 3.3, 4 (c)
Ex 3.3, 4 (d) Important
Ex 3.3, 4 (e) Important
Ex 3.3, 4 (f)
Ex 3.3, 5 Important
Ex 3.3, 6 Important You are here
Transcript
Ex 3.3, 6 Write a digit in the blank space of each of the following numbers so that the number formed is divisible by 11 : (a) 92 __ 389To check divisibility by 11, we check Sum of digits at odd Places − Sum of digits at even Places Given numbers 9 2 __ 3 8 9 Sum of digits at odd Places = 9 + 3 + 2 = 14 Sum of digits at even Places = 8 + _ + 9 = 17 + _ Let us check different value of blank digits & find difference So Blank digit is 8 Ex 3.3, 6 Write a digit in the blank space of each of the following numbers so that the number formed is divisible by 11 : (b) 8 __ 9484To check divisibility by 11, we check Sum of digits at odd Places − Sum of digits at even Places Given Number 8__ 9484 Sum of digits at odd Places = 4 + 4 + _ = 8 + _ Sum of digits at even Places = 8 + 9 + 8 = 25 Let us check different values of blank digits And find difference So Blank digit is 6
