A nice flash based addition game for younger learners. Answer the questions from the three possible answers given.
http://ictmagic.wikispaces.com/Maths
This is a superb site from the TES with a large collection of great flash whiteboard resources for across the curriculum for Primary schools. There is something for everyone here!
http://ictmagic.wikispaces.com/Cross+Curricular
A maths game for younger students where player must balance or unbalance the seesaw with bunnies of varying weights.
http://ictmagic.wikispaces.com/Maths