Accessible Add and Subtract

This app helps younger kids to practice simple mathematical operations:

• One and two digit additions without carry;
• One and two digit subtractions with the minuend greater than the subtrahend.

It aligns and highlights the digits in order to help the learning process. Sounds and scores help to motivate to keep practicing.

It has a high contrast mode and supports TalkBack for visually impaired children.

This is an opensource app: Source code on GitHub.