🍡 About Tangyuan Math

The idea

Tangyuan Math is a small, independent project. It turns two-digit multiplication practice into something warm rather than stressful: a cute rice-ball buddy named Tangyuan who cheers you on, mistakes that turn into replayable puzzles, and speed as an optional challenge — never a verdict.

How we think about practice

• Understanding first. Untimed practice is the default; the timed challenge is clearly marked as such.
• Mistakes are material, not failure. They go into a mistake book you can clear at your own pace.
• Parents own the data. Everything stays in the browser by default. No accounts, no ads, no tracking.
• Honest claims only. We won't promise grade jumps or fixed speed goals.

Status

The multiplication adventure (Practice, 10-level Challenge, mistake review, English & Chinese) is available now and free. Optional family features like printable worksheets may be added later — this page will always say what actually exists.

Contact

Contact information will be published at launch.