The Chinese abacus. Naval Museum. Madrid. Spain.

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Size: 4724px × 1496px
Photo credit: © Prisma Archivo / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: abacus, arithmetic, asia, asian, asiatic, ball, balls, beads, calculating, calculation, calculations, calculus, china, chinese, count, history, mathematical, mathematics, operations, process, rectangle, rectangular, rectangular-shaped, row, units, wood, wooden