The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Jose Paolo Borromeo:
Math should be simple and fun! "Subtraction for Kids: Animal Flash Cards" is the right way to get your child on the go! Get your kids ready for school with Subtraction for Kids: Animal Flash Cards. This fun and educational game will surely improve your kids IQ and Math skills! Explore numbers and practice subtraction with friends.