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Equivalent Fractions with Models
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http://www.gamequarium.com/decimals.html
http://www.decimalsquares.com/dsGames/
http://www.mrnussbaum.com/docrb2.htm
http://www.brainormous.com/online/mathteroid/mathteroid_div.html
http://www.playkidsgames.com/games/Tunnel/divideFrame.htm
https://www.mathplayground.com/factortrees.html
http://www.iknowthat.com/com/L3?Area=FractionGame
https://www.mathplayground.com/fractions_mixed.html
http://www.xpmath.com/forums/arcade.php?do=play&gameid=60
http://www.playkidsgames.com/games/Tunnel/multiplyFrame.htm
http://www.math-play.com/Order-of-Operations-Millionaire/order-of-operations-millionaire.html
https://mrnussbaum.com/order-ops-online-game
http://www.gamequarium.com/placevalue.html
http://www.funbrain.com/fractop/
http://www.math-play.com/decimal-math-games.html
http://cp.claracampoamor.fuenlabrada.educa.madrid.org/flash/area/matematicas/120.swf
http://www.oswego.org/ocsd-web/games/SpeedGrid/Subtraction/urikasub3res.swf