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THE

COMMON SCHOOL

A RITHMETIC;

COMBINING

ANALYSIS AND SYNTHESIS ;

ADAPTED TO

THE BEST MODE OF INSTRUCTION IN THE ELEMENTS

OF WRITTEN ARITHMETIC.

BY

JAMES S. EATON, M. A.,

INSTRUCTOR IN PHILLIPS ACADEMY, ANDOVER, AND AUTHOR OF "EASY LESSONS IN

MENTAL ARITHMETIC," AND "A TREATISE ON WRITTEN AHTUMETIC.”

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BOSTON:
TA G GARD AND THOMPSON,

29 CORNHILL.

SAN FRANCISCO: H. H. BANCROFT & COMPANY.

1864.

GAIOZ
下3
Educ.
Dept.

Entered, according to Act of Congress, in the year 1863,

BY JAMES S. EATON, M. A.,

In tlic Clerk's Oflice of the District Court of the District of Massachusetts.

EDUCATIUN DEPT.

ANDOVER:

BLBCTROTYPED AND PRINTED

BY W. . DRAPER.

PREFACE.

THERE is a large class of pupils whose limited time renders it impossible for them to pursue an extended mathematical course. The author, in accordance with his original intention to prepare a series of text-books in Arithmetic, has now endeavored to adapt this work to the wants of this class of pupils.

With this purpose in view, the simple, elementary, practical principles of the science are more fully presented than in his larger work, while the more intricate and less important parts have been treated more briefly or entirely omitted. A corresponding change in the character of the examples has also been made.

As in the larger work, so here, constant attention has been paid to the brevity, simplicity, perspicuity, and accuracy of expression; and no effort has been spared in the endeavor to render the mechanical execution appropriate and attractive.

Definitions, tables, and explanations of signs have been distributed through the book where their aid is needed, to enable the pupil to learn them more readily than when they are presented collectively.

Nearly all the examples have been prepared for this book, and are different from those of the larger work ; still, to secure uniformity of language (a matter of great importance, as every experienced teacher knows), the leading examples in the several subjects, the definitions and rules, with few exceptions, have been intentionally retained with but little modification.

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