How To Use A Chinese Abacus: A step-by-step guide to addition, subtraction, multiplication, division, roots and more. book will teach you point by point how to carry out the addition, the subtraction, division, the multiplication, the roots square and the cubic roots on a Chinese counting frame. He also explains the ancient method "of additional pearl" and the method "of suspended pearl". Large for children and adults. Clearly explained with the text and the images in all each stage of your calculation. 15 new or used available from $22.99
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