Mental Subtraction

Complete subtraction sentences using mental methods only.

Start by subtracting 0.9 from numbers and then move on to adding or subtracting 1.9, 2.9 using the same technique.

A quick reminder of aspects of subtraction learnt in previous years, including some tricky subtracting decimals.

A variety of addition and subtraction of decimals questions. Take time to ensure they are all correct.

More mental subtraction with large numbers.

Plenty of practice subtracting tens of millions mentally.

Here are some problems with words. They are not difficult, but they should worked out 'in your head' as quickly as possible and be prepared to tell your teacher or parent how you did them.

Work out mentally the answers to these sets of subtraction sums. For some, write down the method used to do it.