A Key to Arithmetic for Schools - Barnard Smith - Bog

An educational classic that has been used for generations. This book offers a clear and concise introduction to arithmetic, covering topics such as addition, subtraction, multiplication, and division, as well as practical applications such as calculating interest and exchange rates. Written by Barnard Smith, a renowned mathematician and educator, the book is easy to follow and full of examples and exercises. A timeless resource for students and teachers alike.
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