Math - Single and Double digit Addition and Subtraction

Fun and intuitive way to introduce double digit addition and subtraction.The animated numbers show how the carry over works. In no time your child will start doing double digit operations even without realizing it.Features:1) Single digit Addition and Subtraction - 5 levels gradually increasing in difficulty2) Concept section (little bulb in top left corner of main screen) - Explains the units and tens position3) Double digit Addition and Subtraction - Level 1: Without carryover - Level 2: With carryoverFree version available to try before buying.
Price USD 1.99
License Purchase
File Size 3.05 MB
Version 1.0
Operating System iOS
System Requirements Compatible with iPhone and iPod touch., Requires iPhone OS 2.2.1 or later., iTunes account required