How to help your child add and subtract mentally

Key Stage 2 child add and subtract mentally mental maths

Many children really struggle with adding and subtracting mentally in their heads and often rely on using their fingers to count. I’ve seen this with children all the way up to Year 6. This really slows children down in arithmetic tests, mental maths tests and when using written column method to solve addition and subtraction. It can also be very frustrating for children and lower their confidence because they don’t feel they know any other way of mentally adding and subtracting.

The methods below are some of the foundations in helping your child build confidence and speed in their mental addition and subtraction skills.

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How to help your child with mental maths – Part 2

mental maths arithmetic key stage 2

In the next part of the mental maths series, we are going to look at multiplying and dividing by 10, 100 and 1000. Your child will come across these type of questions in their arithmetic tests but it is also a really important skill to help them answer other mental maths questions and to use within grid method for multiplication.

Children tend to start this in Year 4 and Year 5 and the aim is for children to be able to do this mentally. However, a good starting point is using a place value chart.

There are some rules to remember:

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