Question

Write divisibility rule for 3,6,9 and give examples.​

Answer 1

Answer:

a number is divisible by 3 if sum of its digits are divisible by 3.

a number is divisible by 9 if sum of its are divisible by 9.

a number is divisible by 6 if it is divisible by 2 and 3

Step-by-step explanation:

example - number 15 is divisible by 3

example- number 81 is divisible by 9

example - number 24 is divisible by 2 and 3 . therefore it is divisible by 6.

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Answer 2

Divisibity rule of 3:

If the sum of digits is divisible by 3 the number is divisible by 3.

eg- 27

2+7=9

Since 9 is divisible by 3, 27 is divisible by 3.

For 6 :

if both numbers are divisible by 2 and 3

Like 12 is divisible by both 2 and 3

so 12 is divisible by 6.

For 9:

If the sum of digits is divisible by 9 the number is divisible by 9.

Like 99

9+9 = 18 which is divisible by 9 so 99 is divisible by 9.