Flashcard type drills for children recently introduced to subtraction.
Select a number 1 through 12, and random cards will be presented of that number subtracting from another number.
Get 1 point for each correct question.
For positive reinforcement, the character says things like "yes" and "I knew it" for correct answers. (There is no audio for wrong answers.)
Updated to work with iOS 10 and later. Also works with iPad Pro 12.9" screen and iPhone XMax.
With Family Sharing set up, up to six family members can use this app.