Front cover image for A key to the western calculator : containing the solution of all the examples and questions for exercise, whith reference to the pages where they stand, to which is added, some useful rules, designed chiefly to facilitate the labour of teachers ; and assist such as have not the opportunity of a tutor's aid

A key to the western calculator : containing the solution of all the examples and questions for exercise, whith reference to the pages where they stand, to which is added, some useful rules, designed chiefly to facilitate the labour of teachers ; and assist such as have not the opportunity of a tutor's aid

John Armstrong
Print Book, English, 1831
3rd ed., rev. and corr View all formats and editions
Johnston & Stockton, Pittsburgh, 1831
Early works
139 pages ; 18 cm
6313764
Arithmetic
Arithmetic Early works to 1900
Arithmétique Ouvrages avant 1900
Early works
Stockton, J. 1779-1832
Online version:
Key to the western calculator.
Armstrong, John, 1758-1843.
613210779