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A Key to the National Arithmetic: Exhibiting the Operation of the More Difficult Questions in That Work; For the Use of Teachers Only (Classic Reprint) - Hardcover

Greenleaf, Benjamin

 
9780331398823: A Key to the National Arithmetic: Exhibiting the Operation of the More Difficult Questions in That Work; For the Use of Teachers Only (Classic Reprint)

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Excerpt from A Key to the National Arithmetic<br/><br/>The object of the author, in this publication, is to aid thedeacher in communicating his instructions to his pupils, and enable him the more readily to detect any error, which they may have made in the operation of their questions.

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