iPhone News - Trade-First Subtraction iPhone and iPod Touch Math App news - Fri Jan 29, 2010 5:06 am Post subject: Trade-First Subtraction iPhone and iPod Touch Math App
Independent developer Esa Helttula today released a new educational math app Trade-First Subtraction 1.0 for iPhone and iPod touch. It is the first Everyday Math app in the iTunes App Store. The app can be used to teach and study the trade-first subtraction method.