File:Mult on abacus 12x12 m.jpg

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Mult_on_abacus_12x12_m.jpg ‎(433 × 409 pixels, file size: 61 KB, MIME type: image/jpeg)

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Summary

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Description
Русский: Расчёт 12x12 на координатной сетке с помощью алгоритма "двух камешков". Возможный метод устного счёта в Древней Греции.
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Source Own work
Author В.Б.Творогов

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I, the copyright holder of this work, hereby publish it under the following license:
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Date/TimeThumbnailDimensionsUserComment
current05:09, 21 December 2013Thumbnail for version as of 05:09, 21 December 2013433 × 409 (61 KB)В.Б.Творогов (talk | contribs)User created page with UploadWizard

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