Excerpt from The Business Man's Arithmetic: Containing an Application of a Natural

The principal features embodied in this work are simplicity and brevity.

There can be nothing new in principle, but so far as the authors' knowledge extends, their peculiar methods and abbreviations in the practical applications of the rules of Addition, Multiplication, Fractions, Percentage, Interest, Averaging Accounts, and Mensuration, have not heretofore been published, except such as are contained in the work of the senior author, known as "Orton's Lightning Calculator." As an endorsement of Professor Orton's original work on the subject of rapid or lightning calculations, it may be here stated that over 400, 000 copies of that book have been sold. It is not the design of the authors of this work to make a text-book for the use of beginners in arithmetic, but to offer to those who have mastered the principles of addition, subtraction, multiplication and division, a guide to the practical application of that knowledge of arithmetic and calculations which is required daily in business and the affairs of life. There is no qualification more essential to success than facility in the rapid and accurate use of figures.

In view of the increasing demand for the original work, which has been several times revised, the present authors have decided to enlarge upon the subject. They present in this new volume - the result of their joint labors - the most extensive and comprehensive work of the kind ever offered to the public, in the full assurance that whoever will carefully study its pages will glean therefrom an abundant reward.

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