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

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

Subtraction crossing any of the tens, hundreds and thousands boundaries. Set them all out in the standard way.

These really are tricky as two boundaries have to be crossed. Remember 0 take away 7 is not 7!!