A Treatise On Mental Arithmetic, In Theory And Practice - Softcover

Inhaltsangabe

A Treatise on Mental Arithmetic in Theory and Practice, written by Isaiah Steen, is a comprehensive guide to mental calculations that covers everything from addition and subtraction to fractions and decimals. This invaluable resource is perfect for students, teachers, and anyone interested in improving their math skills.

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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