Multiplication Flashcards: http://www.weatherwizkids.com/flashcardx.htm
Fraction Calculator http://www.helpwithfractions.com/fraction-calculator.html
Math is Fun Math Dictionary: http://www.mathsisfun.com/definitions/index.html
Math is Fun Logic and Puzzles: http://www.mathsisfun.com/puzzles/index.html
Math is Fun Home Page: http://www.mathsisfun.com/ Lots of games, puzzles, explanations for all math concepts
Fun Brain http://www.funbrain.com/
Cool Math Games http://www.coolmath-games.com/
How Does That Radio (Or Anything Else) Work?????
Have Fun and Stretch Your Brain!
www.math.com/parents/helpyourkids.html
www.kids.nationalgeographic.com