Surprise yourself and others with your ability to perform difficult calculations in your head. Often wrongly attributed to innate talent, mental arithmetic is rooted in sound methods tailored to the strengths and weaknesses of the human brain. Those methods, and the will to apply yourself diligently, will enable you to master mental calculation.
Practical Mental Arithmetic offers the only complete course covering everything from addition, subtraction, multiplication, and division to powers, roots, logarithms, exponentials, trigonometric functions, units of measurement, and the calendar, using integers, fractions, decimals, and negative numbers. After a brief but thorough review of conventional arithmetic, the book proceeds systematically from simpler to more complex operations, with examples that show how to perform even difficult calculations mentally. Streamlined methods reduce the demands on the memory, and a practical technique for remembering numbers facilitates digit-intensive calculations. Although shortcuts are presented, the focus is on methods of broad application, not the gimmicks that dominate the literature on mental arithmetic. Amusing historical references and startling insights into mathematics add to the enjoyment of achieving rapid success with challenging calculations that most people could not perform even on paper.
Readers of all levels, from beginners to mathematicians, can profit from the methods taught in this book. With practice, they can achieve astonishing skill in mental arithmetic—and have fun doing so.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
Vendeur : Mispah books, Redhill, SURRE, Royaume-Uni
hardcover. Etat : New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book. N° de réf. du vendeur ERICA82917382059406
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