Question

write the divisibility of 5 and examples.please answer me immediately​

Answer 1

As for a number with a different last digit, we can always represent it as a sum of a number with 0 as a last digit and the number of ones.

For example: 425 = 420 + 5

428 = 420 +8

The number 425 is divisible by 5 because the two addends (420 and 5) are both divisible by 5

The number 428 is not divisible by 5 because one of the addends (8) is not divisible by 5.

So, divisibility by 5 depends only on the last digit. If this digit is either 5 or 0, the number is divisible by 5.

A number is divisible by 5 if the number's last digit is either 0 or 5.

Divisibility by 5 - examples:

The numbers 105, 275, 315, 420, 945, 760 can be divided by 5 evenly.

The numbers 151, 246, 879, 1404 are not evenly divisible by 5. 

A quick way to divide numbers by 5

Example 1:

Suppose you need to divide 342 by 5

342:5 = 68.4

First step:

Multiply the number by 2.

342 x 2 = 684

Second step:

Move the decimal point one place to the left and you get 68.4

Example 2:

Divide 415 : 5 = ?

First step: 415 x 2 = 830

Second step: 83.0, and your answer is 83.

A quick way to multiply by 5

Let's multiply quickly without a calculator 62 x 5 = ?

First step:

Divide 62 by 2 - 62:2 = 31

Second step:

Multiply the result by 10.

31 x 10 = 310

So 62 x 5 = 310