 Bruton Primary School

Part of the East Somerset Federation which includes Upton Noble C of E VC Primary

# Multiplication

These multiplication methods should support your child with their weekly homework on Study Ladder and optional times table practice on Times Tables Rockstars.

The methods increase in difficulty as you move down the page.

## Repeated addition

If you were trying to find the answer to 5 x 2 you could repeatedly add 5 groups of 2

2 + 2 + 2 + 2 + 2 = 2 x 5 (replace groups of with x sign)

Or 2 groups of 5

5 + 5 = 5 x 2

## Arrays

If you were trying to find the answer to 5 x 2 you could draw 5 rows of 2 dots          5 rows of 2 dots = 5 x 2 = 10

You could even draw circles around each row to show 5 groups of 2.

Or draw 2 rows of 5 dots          2 rows of 5 dots = 2 x 5 = 10

You could even draw circles around each row to show 2 groups of 5.

## Grid method:

When one number has at least 2 digits you can use this method. To use this method you separate the hundreds, tens and ones digits and multiply them separately, then add them together.

E.g. 24 x 5

 X 20 4 5 100 20

100 + 20 = 120.

## Expanded method:

This method helps with visualising each step when using the compact method for multiplication, as each multiplication is shown on the side of the columns in brackets.

## Compact method:

This method is the most difficult method for multiplying. To help with this method, children should label their hundreds, tens and ones, and cross off their numbers once carried.

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