Solving equations, easier than it sounds. This site will help you through the basics.

Can you tell the formula for a graph simply by looking at it? If you can't see how here.

A site which covers the basics about co-ordinates. Do you know what a quadrant is? Find out here.

Can you use formulae? How good are your skills? This site allows you to check and develop your skills to see how good you are.

This site allows you to check your knowledge of formulae and algebra.