If your mental arithmetic is slow or your basic arithmetic skills are a bit dodgy

have a look at this site for some fun practice.

http://www.mathplayground.com/math_millionaire.html

The questions change every round so you can keep going back to it.

 

Here’s another one which is good for number work:

http://www.bbc.co.uk/skillswise/numbers/wholenumbers/

Practise moving between fractions, decimals and percentages.