Probability Central
http://library.thinkquest.org/11506
The Probability Central Web site was developed by students. There’s a learning section about probability rules, properties, and models, and a game section. There’s also a probability calculator so you can find out how likely it is for two different events to happen at once.

Math for Morons Like Us
http://library.thinkquest.org/20991
The goal of this ThinkQuest Web site is to clarify confusing math concepts. The subjects covered range from Pre-Algebra to Calculus. There are tutorials, sample problems, quizzes, and interactive resources.

Absurd Math
http://www.hrmvideo.com/abmath
If you need to learn or review pre-Algebra, Absurd Math will help you with logic problems. You'll learn problem solving strategies by playing interactive games and puzzles.

The Challenge of the 7 Cups
http://www.learningwave.com/abmath/7cups/
If you’re interested in algebra and geometry games, visit Challenge of the 7 Cups. Follow the rules to win.