Rapid Arithmetic: Quick and Special Methods in Arithmetical Calculation (Classic Reprint)

There are many things in arithmetic which receive lil or but scant treatment in the ordinary text books. If one method of doing an operation is given, it is considered enough. But it is certainly interesting to know that tliere are a dozen or more methods of adding, that there are a number of ways of applying the other three primary rules, and to find that it is quite vrithin the reach of anyone to add up two columns simultaneously. The muhiplication table for some reason stops abruptly at twelve times not hard to carry it on to or at least towards twenty times. Taking up the question of exponents, it is not going too far to assert that many college graduates do not understand the meaning of a fractional exponent, and as few can tell why any number great or small raised to the zero power is equal to one, when it seems as if it ought to be equal to zero. The multiplication table can be made to give the most curious relations between its constituent figures and quantities, and of these only a part are given here, for one can play a regular game of solitaire with the multiplication table. The book now in the readers hands has been a wonderfully interesting work in its preparation. The sources of information and the authorities appealed to were many and in a number of cases were little known.
(Typographical errors above are due to OCR software and don't occur in the book.)

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Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.

Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the aged text.