Free Preview

Abacus Soroban

Slide the beads. Learn to add, subtract and multiply the Japanese way.

About this game

A tactile Japanese soroban you slide with your thumb. Learn to read numbers, add, subtract and multiply in 13 short lessons, with a coach that moves the beads and explains why. Then test yourself with Flash Mental and a 60-second Timed Challenge.

How to play

  1. Each rod is a digit: the heaven bead is 5, each earth bead is 1.
  2. Slide beads to the middle beam, or just tap them.
  3. Follow a lesson: show numbers, add, take away, multiply.
  4. Tap Hint to see which rod to use and why.
  5. Flash Mental: numbers flash, then set the total.
  6. Timed Challenge: solve as many tasks as you can in 60 seconds.

Get the full game

This browser preview is a free taste. The full game — unlimited play, more content, no interruptions — is in the Arcforge app on iPhone, iPad and Android. Every game starts with a free 90-second preview there too.