Posted by Peter on 20th February 2009

# Maths worksheet: divide by 5 mentally

Here is a page on dividing by 5 ‘in your head’. Divide each of the numbers in the circles by 5 and place the answers in the outside hexagons.

This is a useful exercise as it helps to show the relationship between division and multiplication. If the 5 times table is known these are quite simple; if the 5 x table is not known then they are very difficult!

It relies on the knowledge that if 5 x 7 = 35 then three other facts are known:

1. 7 x 5 = 35 and

2. 35 divided by 7 = 5

3. 35 divided by 5 = 7

Divide by 5 mentally (pg 1)

## 2 Responses

1. thank youuuuuuuuuuuuuuuuu!!!!!!!!!!!!!!!

very helpful, i’m going to dubai in a few weeks and to convert the currency (so that i can know how much a price is in pounds) i have to divide by 5.4, so i use this, dividing by 5 instead, not as accurate but close enough!!! thanks!!!!!!!!

2. Devan says:

easiest way to divide by 5:

divide by 10
multiply by 2

take any number…say 90 for example:

divide by 10 = 9
9 times 2 = 18

voila! 18 is the answer to 90 / 5!