Defense Department school students at Yokosuka Naval Base observe as their Japanese counterparts rapidly calculate nine-digit ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This abacus has an open wooden frame ...
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 ...
An abacus and mental arithmetic competition was held in Okayama Prefecture in late August. In the "Flash Anzan" event, 15 sets of three-digit numbers were flashed consecutively on a screen, and ...
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