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ESSENTIALS OF ARITHMETIC

ORAL AND WRITTEN

BY

J. W. McCLYMONDS

CITY SUPERINTENDENT OF SCHOOLS, OAKLAND, CALIFORNIA

AND

D. R. JONES

SUPERVISOR OF THE TEACHING OF ARITHMETIC
STATE NORMAL SCHOOL, SAN FRANCISCO, CALIFORNIA

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NEW YORK .:. CINCINNATI ::: CHICAGO
AMERICAN BOOK COMPANY

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OF THE

UNIVERSITY

OF
CALIFORNIA

PREFACE

This text is designed for use in the grammar grades, following the completion of the Elementary Arithmetic of the same series. In the preparation of this text the authors have aimed (a) to secure skill in numerical computations and (b) to develop the power necessary to the solution of any practical problem that may arise in the common experiences of life.

The following are some of the distinguishing features of this text:

1. The text contains an unusually large number of exercises that are designed to give facility in numerical computations.

2. In the presentation of each topic an effort has been made to stimulate thought and to develop self-reliance on the part of the pupils. Whenever the nature of the work admits, it calls for action on the part of the pupils, as in making measurements, engaging in business relations with others in the class, etc.

3. The scope of the work is restricted to the needs of the majority of persons in the common experiences of life. Traditional materials that make no contribution to the mastery of the essentials of arithmetic have been carefully eliminated. All of the work prescribed in the text proper is easily within the capacity of pupils in the grammar grades. Certain topics that are prescribed in some courses of study but purposely omitted from other courses have

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191789

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