Learn the Abacus and expand your brain power! Fully customizable with 4 to 11 columns, either Japanese or Chinese style and can show numbers for each column for educational purposes.

The Soroban Abacus is a calculating tool in use for over 4,000 years. Abaci are often constructed as a bamboo frame with beads sliding on wires and are still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. The user of an abacus is called an abacist.

This digital version of the abacus is a functional and educational tool. Slide the beads with your fingertip as easily as using the real thing. Features include:

* Japanese and Chinese Options
(1 or 2 Heaven Beads)
* Tutorials in addition, subtraction and monetary calculation
* Variable number of columns (4 to 11)
* Toggle on or off Roman Numerals for each column's value.
* Bead color selections

If you would like to learn how to use an abacus or would like a portable abacus for daily use, this tool is for you!