Key to the Complete Arithmetic, for Teachers and Private Learners (Classic Reprint) - Softcover

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Excerpt from Key to the Complete Arithmetic, for Teachers and Private Learners<br/><br/>Sably necessary to many teachers, but with the multiplicity of duties ordinarily devolving upon the teacher, time cannot always be had to answer or solve all questions that may be presented by the pupil. Hence a key becomes a great convenience, if not a necessity, in lessening the labor, and saving the time of the teacher, by presenting the shortest solution, and the best form of ysis, as a standard to which the pupil should be required to conform.

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