ISBN-13: 9781497458383 / Angielski / Miękka / 2014 / 184 str.
ISBN-13: 9781497458383 / Angielski / Miękka / 2014 / 184 str.
This book will teach you step-by-step how to perform addition, subtraction, division, multiplication, square roots and practical examples on a Japanese abacus. Great for both children and adults. Clearly explained with text and pictures throughout every stage of your calculation.