Q1 of 52 Page 317

Using divisibility rules, find which of the following numbers are divisible by 2,5,10 (say yes or no ) in the given table . What do you observe?

From the divisibility rules we know that if the given number ends with 0 then it is divisible by 10 and if the number ends with 0 or 5 it is divisible by 5 and if the unit place of a number is divisible by 2 then the number is divisible by 2.


We observe that if a number is divisible by 10 then the number is also divisible by 2 and 5.


More from this chapter

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2

Using divisibility tests, determine which of following numbers are divisible by 2

(a) 2144 (b) 1258


(c) 4336 (d) 633 (e) 1352

 3

Using divisibility tests, determine which of the following numbers are divisible by 5

(a) 438750 (b) 179015


(c) 125 (d) 639210 (e) 17852

 4

Using divisibility tests, determine which of the following numbers are divisible by 10:

(a) 54450 (b) 10800


(c) 7138965 (d) 7016930 (e) 10101010

 5

Write the number of factors of the following?

18