sliderulemuseum.comsliderulemuseum.com/Abaci/HowToUse_ChineseAbacus... · HOW TO USE THE CHINESE...
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sliderulemuseum.comsliderulemuseum.com/Abaci/HowToUse_ChineseAbacus... · HOW TO USE THE CHINESE ABACUS FOREWORD The purpose of this booklet is to give only the fundamental operations