# How to...

### Partition

## The history of partitioning

Partitioning is a great way to solve multiplication and addition in this poster I will explain how to partition what it is used for and when to use it. Also it is very fast way to solve large maths problems.

## Addition

## Partitioning an addition problem

First you need to find your problem I'll use 324 + 641 so to start split a the numbers as shown

300 20 4 600 40 1 Also if you cant split the numbers use a ones tens hundred grid.

Now add 300 + 600 = 900

Then 20 + 40 = 60

And 4 + 1 = 5

Then add all the new answers 900 + 60 = 960

After that 960 + 5 = 965

And that's your answer 324 + 641 = 965

## Partitioning an multiplication problem

Ok say we wanted to figure out how to solve 5 x 12

First split 12 into 10 , 2 the go

5 x 10 = 50

5 x 2 = 10

Then 50 + 10 = 60

Here's another example

7 x 8 =

first split 8 into 4 and 4

7 x 4 = 28

7 x 4 = 28

Then 28 + 28 =

## Lets use both

Here's another example

7 x 8 =

first split 8 into 4 and 4

7 x 4 = 28

7 x 4 = 28

Then 28 + 28 =

lets do the addition version

20 20 8 8

20 + 20 = 40

8 + 8 = 16

40 + 16 = 56

## The end

Thank you for reading I hope you learnt how to partition

By Demi Jonassen