more maths games 4 us...

http://math.rice.edu/~lanius/domath/magicsquare.html

http://www.playkidsgames.com/games/robot/robotCalculator.htm

http://www.dr-mikes-math-games-for-kids.com/calculator-word-game-upside-down.html

http://www.aaastudy.com/patran3.htm

http://www.analyzemath.com/geometry_calculators.html

http://nces.ed.gov/nceskids/createagraph/default.aspx