iSoroban

"Soroban" is a Japanese abacus that is used to calculate by moving beads that represent a number value. On iSoroban, this number can be seen on the top of the screen. Try out a different way of calculation.

How to use iSoroban

On the next pages, you will learn how to do addition, subtraction, multiplication and division on iSoroban.

Overview | Addition | Subtraction | Multipliction | Division