Concept
Version 12
Created by Boundless
The Eastern Zhou Period
Bamboo Slips Showing Arithmetic
These bamboo slips show a sophisticated two digit decimal multiplication table.
A decimal multiplication table
Source
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"File:Qinghuajian, Suan Biao.jpg."
https://commons.wikimedia.org/wiki/File:Qinghuajian,_Suan_Biao.jpg
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CC BY 3.0.