← Back to Home

Japanese Soroban Abacus

Click beads to move them · Learn place values · Challenge yourself!

Current Value
0
Column Values
🎯 Challenge Mode
Score: 0 / 10
Set the abacus to: 427
☝️
Click to Move Tap any bead to move it toward or away from the center bar
🟡
Heaven Bead = 5 The top bead in each column counts as 5 when moved down
Earth Beads = 1 each Four bottom beads, each worth 1 when moved up
📊
Place Values Right column = ones · Middle = tens · Left = hundreds, etc.