Try Shapes Lab 3 D Shapes
Funbrain http://www.funbrain.com
Activities For Kids http://www.activitiesforkids.com
Mathplayground http://www.mathplayground.com
PBS Kids http://www.pbskids.org
A Plus Math http://www.aplusmath.com
Scholastic Network http://www.scholasticnetwork.com
Learn to Read http://www.starfall.com
Stop The Clock http://www.oswego.org/ocsd-web/games/StopTheClock/sthec3.html
Exact Change Please http://www.tennessee.gov/tdfi/java/game/ExactChangePlease/index.html
Fun Creative and Interesting. http://www.kerpoof.com
Study those spelling words while playing a game. http://www.spellingcity.com