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Fairfields Primary School

Subtraction

MENTAL METHODS

Year 1 - Subtraction counting back

Year 3 - Subtraction by Counting On

Year 4 - Subtraction by Counting Back

Year 4 - Subtraction by Counting Up

Year 5 - Round and adjust

Year 5 - Counting up  

The written 'Frog' method is shown first so that you can see how it then transfers to a mental method. 

Year 6 - Near Multiples of Powers of 10

Year 6 - Using Place Value

WRITTEN METHODS

Year 3 - Counting up using a number line

This method can lead to a mental method once the child can do it in their head.