Adding Integers Practice
http://www.math-play.com/integers-game.html
http://www.math-play.com/math-racing-adding-integers-game/math-racing-adding-integers-game.html
http://www.mathplayground.com/ASB_SpiderMatchIntegers.html
http://www.arcademics.com/games/orbit-integers/orbit-integers.html
http://www.mathgoodies.com/games/integer_game/football.html
http://www.xpmath.com/forums/arcade.php?do=play&gameid=55
http://www.sheppardsoftware.com/mathgames/integers/FS_Integer_addition.htm