Equations Math Basketball
http://www.math-play.com/math-basketball-one-step-equations/math-basketball-one-step-equations.html
Equations Soccer
http://www.math-play.com/soccer-math-one-step-equations-game/one-step-equations-game.html
Math Detectives
http://www.mathplayground.com/XDetectives/XDetectives.html
Math Games
http://www.math-play.com/