An interactive Virtual Soroban in your browser.
Practise mental arithmetic on a computer, tablet or phone. An authentic Japanese 1:4 layout with reckoning-beam unit dots, smooth bead movement and a wooden click on every move.
Each rod has one upper bead worth 5. Resting up, it counts 0. Click it to slide it down against the beam and count 5.
Each rod has four lower beads worth 1 each. Resting down, they count 0. Click one to raise it, and the beads below it, against the beam.
The foundation of mental arithmetic (Anzan).
How bead visualization trains both halves of the brain to calculate quickly without a physical tool.
Photographic memory
Students learn to picture the soroban in their mind's eye, which strengthens spatial memory and image retention.
Speed beyond calculators
Trained practitioners add and multiply ten-row, multi-digit sums faster than an adult can type them into a phone.
Long-term STEM confidence
Early mental-math mastery removes numeracy anxiety and builds a base for algebra, physics, coding and logic.
Bring the Virtual Soroban to your academy.
Give students round-the-clock access to digital practice sheets, timed sums and interactive abacus tools.