Grow your Monster


Train your brain,

Master Mental Arithmetic.

Great Educational Method – SOROBAN –
SOROBAN, the abacus originaly reinvented in Japan, is amazingly powerful tool for developing our abilities such as concentration, memories and incredible level of mental arithmetic.
Since SOROBAN activates the right brain, its effect on our brain is enorm. More and more kids are learning SOROBAN all over the world.
Through playing SOROBAN MONSTER, you can skill up step by step from beginner to master.
As you go to the higher level, the monster grows up. The Hints helps you to step up by yourself.
Addition and Subtraction for Beginner up to Master.
including 2 digits and 3 digits calculations (both SOROBAN & Mental arithmetic)