Abacus Master

Abacus Master is an interactive automated tutor built to train you on the Abacus calculation techniques.

You can learn the basics of using Abacus:
- Representing numbers.
- Performing a simple addition and subtraction tasks.

You can test your Abacus calculation skills by using the exercise section.

You can use the Abacus section to do your ordinary calculations.

* Please note this is a limited demo version of the app.

** The Abacus is a calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system and is still used by merchants, traders and clerks in some parts of Eastern Europe, Russia, China and Africa.