Sums Stacker

"Sums Stacker" is one of a series of challenges included in the award winning "Math Doodles" iPad app. This version of "Sums Stacker" has been designed specifically for the iPhone/iPodTouch screens. * 2010 Parents' Choice Gold Award winner - Parents' Choice Foundation * * Editor's Choice Award for Excellence in Design - Children's Technology Review * --------------------------------------- "T…