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  • Jarrow Cross C of E Primary School
‘Living and Learning’
Value in Everyone

Thursday 21st Jan

Today, we are going to explore some written methods for multiplying.

 

In Year 3, you would have looked at multiplying 2 digits by 1 digit. 

 

e.g. 24 x 3

 

To help our understanding of multiplying numbers which are greater than our times table knowledge, we are going to partition the 2 digit number and then multiply both the multiples of 10 and the ones by the other number, which is 3 in this case.

 

so 24 x 3 becomes.

 

 20 x 3 added to 4 x 3.

 

2 x 3 is 6, so 20 x 3 is 60 add to 4 x 3 which is 12

 

so 24 x 3 is 60 add 12, which is 72

 

We can show this on a place value grid or with a part, part, whole model. These are shown and explained on the video below. You can draw these in your workbook or if you like to print out, please see the links below. 

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