Maths Challenge is for pupils aged 9 to 11 and aims to consolidate their mental maths skills. There are 18 programmes available in total - of which 9 exist as videos and 9 as audio only.

If you've enjoyed taking part in Ralph and Matrix's Maths Challenge Quiz you can also join them here for 10 more audio quizzes. These quizzes adopt exactly the same general structure as the Maths ...