A Key to the Western Calculator, Containing the Solution of All the Examples and Questions for Exercise, with Reference to the Pages Where They Stand: To Which Is Added, Some Useful Rules, Designed Chiefly to Facilitate the Labour of Teachers; And Assist
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A Key to the Western Calculator, Containing the Solution of All the Examples and Questions for Exercise, with Reference to the Pages Where They Stand: To Which Is Added, Some Useful Rules, Designed Chiefly to Facilitate the Labour of Teachers; And Assist
