Maths Playground - Lots of fun maths games.
Fun Addition Games - Fun addition games.
Maths Game - Number identification.
Abcya Maths Games - Scroll down past the literacy games to find number identification, number sequence and basic addition games.
Primary Games - Games the involve maths skills.
KinderWeb Education Games - Number identification.
BBC Bitesize - Lots of different maths games on this site
Maths Playground - Fun maths thinking games.
Multiplication Games - Games that improve multiplication games.
Prototec Basic Facts Maths - Online basic facts practice for stages 2-7
CoolMath4Kids - - Maths games for all ages covering all areas of maths.