Here is a link to some very good numeracy websites that will help you learn in a fun way.

Number Time
Bernie and Bill have a range of games that are guaranteed to put the fun back into numbers.

KS1 Bitesize Numeracy
Join Max and Molly on their numeracy adventures at KS1 Bitesize.

Starship
Set off on a cosmic adventure aboard the Starship with Star, Sky and Hutch.

Digger and the gang
Get set for adventure! Nash, Flick and Sprat will help you get your numerical skills on track! 

KS2 Bitesize maths

bbc.co.uk/education/dynamo/den/index.shtml

DynaMo’s Den
Revise number, shape, space, measures and data handling.