Please click on the links below that will take you to various sites that contain good and fun maths activities!
http://www.websudoku.com/
http://www.bbc.co.uk/schools/ks2bitesize/maths/
http://www.coolmath4kids.com/
http://www.mathplayground.com/games.html
http://www.primarygames.co.uk/
http://www.woodlands-junior.kent.sch.uk/maths/
http://www.gamequarium.com/math.htm
If you know of any more please feel free to let me know. I will then check them out and put them on here!