TOKYO -- An app developed in Japan for people to learn the abacus-method of math calculation skills is gaining global popularity, with more than 8,000 students at home and abroad using the app to ...
HAEBARU TOWN, Okinawa — A 6-year-old Japanese girl stood with her back to Defense Department students gathered Thursday to learn about the Japanese abacus, or soroban, at the Tsukazan Community Center ...
Teaches pilots to solve aviation math problems mentally, without calculators. Covers essential areas like fuel planning, temperature conversions, and time-speed-distance calculations. Offers practical ...
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