Barnard's work provides a systematic introduction to the principles of arithmetic, with a focus on developing a deep understanding of the underlying concepts. Filled with examples and exercises, this book is an essential resource for math students and teachers alike.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.

This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

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