1. Multiplying numbers using the grid method

This is a fabulous written method for multiplying and leads on to the formal calculation methods that we use as adults. The key is to understand the value of each digit in the number and to apply knowledge of times tables. The video shows how to set out these calculations and how to come to a final answer.

multiplication using the grid method from John Donne Primary School on Vimeo.

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2. Partitioning Numbers

Partitioning numbers means understanding the value of the digits in a number. In 37, what does the 3 stand for? What does the 7 stand for? Click here to find out how to work this out.

2 Digit Numbers 

partitioning 2 digit numbers from John Donne Primary School on Vimeo.

 

3 Digit Numbers

partitioning 3 digit numbers from John Donne Primary School on Vimeo.

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