A few more Maths links:

This fun space invader game starts at level 1 but then becomes trickier. Click on this blue hyper link Fun School Space Invaders

This site is a must. There are no fancy graphics but it allows students to show their working on the page which is great for regrouping (carrying tens). Click on this link: Learn4good

Click on this link if you're looking for a challenge: Magic Square

These links and more can be found at ICT Magic.