http://www.abcya.com/subtraction_game.htm

http://www.hbschool.com/activity/day_at_beach_k/

http://www.hbschool.com/activity/busy_bees/

http://www.hbschool.com/activity/fireflies/

http://www.kidsnumbers.com/sunny-bunny-subtraction.php

http://www.coolmath-games.com/0-feed-fribbit-subtraction/index.html

http://www.abc.net.au/countusin/games/game8.htm

http://fun4thebrain.com/subtraction.html

http://www.arcademicskillbuilders.com/

http://www.woodlands-junior.kent.sch.uk/maths/interactive/subtraction.htm

http://members.learningplanet.com/act/mc/freemenu.asp