Enhance your mental math skills with this app, offering various difficulty levels for calculation practice. It's also beneficial for abacus training.
Flash暗算!! by kyohei sato





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Enhance your mental math skills with this app, offering various difficulty levels for calculation practice. It's also beneficial for abacus training.

Enhance your mental math skills with daily challenges that adapt to your level. Improve speed and accuracy through consistent practice. This app helps you naturally progress in flash mental arithmetic.


Practice mental arithmetic with this educational app. Review your calculation process, and easily re-challenge mistaken problems from your past logs. Upgrade to save more calculation history.


This app helps improve mental math skills by presenting numbers that flash on screen for users to add. It offers various stages with increasing difficulty and timed challenges, along with a practice mode for self-paced learning. Users can earn medals and track their progress.






This official app from Soroban Kyoshitsu 88-kun offers practice for children attending their abacus classes. It allows for flash calculation and arithmetic drills at home, with features like multiplication tables and place value exercises.




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