Cocker's arithmetic. [electronic resource] : Being a plain and familiar method, suitable to the meanest capacity, for the full understanding of that incomparable art, as it is now taught by the ablest Schoolmasters in city and country. Composed by Edward Cocker, late Practitioner in the Arts of Writing, Arithmetic, and Engraving. Being that so long since promised to the world. Perused and published by John Hawkins, Writing-Master near St. George's church in Southwark, by the Author's correct copy, and recommended to the world by many eminent mathematicians and Writing-Masters in and near London. Licensed Sept. 3. 1677. Roger L'Estrange. Revised and corrected by John Mair.