Interactive · Mental Math

Abacus Trainer

Build numbers bead by bead on the abacus, then check your answer. Sharpen your number sense and climb your best streak.

Score 0
Streak 0
Best 0
Digits 2
Tap a bead — every bead above it counts Current value0
10000 1000 100 10 1

Tip: press Enter to check your answer. Beads moved to the left add their rod's value.

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