UNIVERSITY ARITHMETIC

EMBRACING THE

SCIENCE OF NUMBERS,

AND

GENERAL RULES FOR THEIR APPLICATION.

BY CHARLES DAVIES, LL. D.,

AUTHOR OF PRIMARY, INTELLECTUAL, AND SCHOOL ARITHMETICS; ELEMENTARY
AI GEBRA; ELEMENTARY GEOMETRY; PRACTICAL MATHEMATICS; ELEMENTS
OF SURVEYING; ELEMENTS OF ANALYTICAL GEOMETRY; DESCRIPTIVE
GEOMETRY; SHADES, SHADOWS, AND PERSPECTIVE; DIFFER-
ENTIAL AND INTEGRAL CALCULUS; AND LOGIC AND
UTILITY OF MATHEMATICS.

NEW YORK: CINCINNATI .:. CHICAGO
AMERICAN BOOK COMPANY

ΤΟ

THE TEACHERS OF THE UNITED STATES,

THIS

TREATISE ON ARITHMETIC,

THE LAST OF A SERIES OF WORKS DESIGNED TO LESSEN THE LABOR AND IMPROVE THE SYSTEMS OF TEACHING,

IS

RESPECTFULLY DEDICATED,

BY

THE AUTHOR.

IT IS OFFERED AS A TOKEN OF HIS GRATEFUL APPRECIATION OF THE INDULGENCE WITH WHICH HIS OTHER WORKS HAVE BEEN RECEIVED, AND AS A TESTIMONY

OF HIS REGARD FOR THOSE WITH WHOM HE HAS LONG BEEN A CO

LABORER IN THE WORK OF PUBLIC INSTRUCTION