THE NATIONAL ARITHMETIC, ON THE INDUCTIVE SYSTEM; COMBINING THE ANALYTIC AND SYNTHETIC METHODS, TOGETHER WITH THE CANCELLING SYSTEM; FORMING A COMPLETE MERCANTILE ARITHMETIC. BY BENJAMIN GREENLEAF, A. M. PRINCIPAL OF BRADFORD TEACHERS' SEMINARY. New Stereotype Edition, BOSTON: PUBLISHED BY ROBERT S. DAVIS & CO. NEW YORK: PRATT, WOODFORD, & Co., AND CADY & BURGESS. CINCINNATI: TRUMAN & SPOFFORD. And sold by the trade generally. |