Fractions, Decimals, Percent

http://www.math-play.com/changing-fractions-to-percents.html
http://www.math-play.com/Changing-Fractions-and-Decimals-to-Percents/changing-fractions-and-decimals-to-percents-millionaire.html
http://www.matematicasdivertidas.com/Zonaflash/juegosflash/fractionpercentage.swf