Monkey Money
Sum Stacker
http://www.carstensstudios.com/mathdoodles/sumsstacker.html
Counting Money
http://www.aplusmath.com/cgi-bin/flashcards/money
Go Shopping!
http://www.primarygames.com/Spending%20Spree/start.htm
Matching Money
http://www.harcourtschool.com/activity/con_math/g03c07.html
Coin Madness
http://www.sheppardsoftware.com/mathgames/Add%20Like%20Mad%20Math/addlikemad_coin.htm
Money Match
http://www.sheppardsoftware.com/mathgames/matching/memoryMath_coins_level1.htm
Money Machine
http://www.toonuniversity.com/flash.asp?err=569&engine
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Kyle's Money Page
http://www.ibfx.com/Education/All-About-Money