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The scholar's assistant, or, A plain, comprehensive, and practical system of arithmetic: to which is prefixed an introduction, containing a practical illustration of the primary rules, and of the tables of money, weights, and measures : designed for the use of schools in the United States
The scholar's assistant, or, A plain, comprehensive, and practical system of arithmetic: to which is prefixed an introduction, containing a practical illustration of the primary rules, and of the tables of money, weights, and measures : designed for the use of schools in the United States