Learn the Japanese soroban by running a market stall.

Controls

• Click or tap a bead to flick it, or drag it up or down

Credits

• Lesson texts: "Using an Abacus", Wikibooks contributors, CC BY-SA 4.0

• Sprites, sounds and particles: Kenney (kenney.nl), CC0

• Font: Noto Sans by Google, SIL Open Font License 1.1