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ARITHMETICS

BOOK THREE

BY

GEORGE MORRIS PHILIPS, LL.D.

PRINCIPAL, WEST CHESTER, PA., STATE NORMAL SCHOOL; FORMERLY

PROFESSOR OF MATHEMATICS, BUCKNELL UNIVERSITY

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PREFACE

This book is written to meet the needs of pupils of grades seven and eight and those of more advanced grades who wish to review arithmetic.

Like the first two books of the series, it aims to make pupils proficient in arithmetical processes, and to make them thinkers as well as doers.

To accomplish these ends it provides a great amount of drill work, both oral and written, and a wealth of wellgraded problems of a varied character, yet practically all closely associated with the affairs of everyday life. In other words, it may be said that the aim of the book is to give the pupil such thorough grounding in arithmetic as will qualify him to take advantage of any opportunity that may be open to him, rather than to fit him for some special vocation in which he may not engage. .

Attention is invited to the following features of the book :

1. The thorough review and extension of Fundamental Processes, Fractions, Decimals, and Denominate Amounts, designed to perfect the work done in the lower grades.

2. The abundance and up-to-date character of the problems, which are closely allied with a variety of activities and which are based on facts derived first hand from the most reliable sources.

3. The treatment of such subjects as Parcel Post, Postal Savings Banks, etc.

4. The explanations of illustrative examples, which set forth in correct form the logical steps leading to results, and which are designed to induce correct habits of thought and orderly arrangement of work.

5. The treatment of Negotiable Paper and Banking, in which are found photographic forms of business papers in everyday use and explanations of them in language free from technicalities.

6. The extensive treatment of Mensuration and the method employed of deriving most of the important principles of the subject.

7. The topical arrangement and the numerous reviews.

8. The placing of the less important subjects in a supplement.

9. The omission of subjects and problems which are obsolete, overcomplex, and impracticable.

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