Short-Cut Math

Nonfiction, Science & Nature, Mathematics, Arithmetic
Cover of the book Short-Cut Math by Gerard W. Kelly, Dover Publications
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Gerard W. Kelly ISBN: 9780486131528
Publisher: Dover Publications Publication: November 18, 2014
Imprint: Dover Publications Language: English
Author: Gerard W. Kelly
ISBN: 9780486131528
Publisher: Dover Publications
Publication: November 18, 2014
Imprint: Dover Publications
Language: English

Can you multiply 362 x .5 quickly in your head? Could you readily calculate the square of 41? How much is 635 divided by 2½? Can 727,648 be evenly divided by 8?
If any of these questions took you more than a few seconds to solve, you need this book. Short-Cut Math is a concise, remarkably clear compendium of about 150 math short-cuts — timesaving tricks that provide faster, easier ways to add, subtract, multiply, and divide.
By using the simple foolproof methods in this volume, you can double or triple your calculation speed — even if you always hated math in school. Here's a sampling of the amazingly effective techniques you will learn in minutes: Adding by 10 Groups; No-Carry Addition; Subtraction Without Borrowing; Multiplying by Aliquot Parts; Test for Divisibility by Odd and Even Numbers; Simplifying Dividends and Divisors; Fastest Way to Add or Subtract Any Pair of Fractions; Multiplying and Dividing with Mixed Numbers, and more.
The short-cuts in this book require no special math ability. If you can do ordinary arithmetic, you will have no trouble with these methods. There are no complicated formulas or unfamiliar jargon — no long drills or exercises. For each problem, the author provides an explanation of the method and a step-by-step solution. Then the short-cut is applied, with a proof and an explanation of why it works.
Students, teachers, businesspeople, accountants, bank tellers, check-out clerks — anyone who uses numbers and wishes to increase his or her speed and arithmetical agility, can benefit from the clear, easy-to-follow techniques given here.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

Can you multiply 362 x .5 quickly in your head? Could you readily calculate the square of 41? How much is 635 divided by 2½? Can 727,648 be evenly divided by 8?
If any of these questions took you more than a few seconds to solve, you need this book. Short-Cut Math is a concise, remarkably clear compendium of about 150 math short-cuts — timesaving tricks that provide faster, easier ways to add, subtract, multiply, and divide.
By using the simple foolproof methods in this volume, you can double or triple your calculation speed — even if you always hated math in school. Here's a sampling of the amazingly effective techniques you will learn in minutes: Adding by 10 Groups; No-Carry Addition; Subtraction Without Borrowing; Multiplying by Aliquot Parts; Test for Divisibility by Odd and Even Numbers; Simplifying Dividends and Divisors; Fastest Way to Add or Subtract Any Pair of Fractions; Multiplying and Dividing with Mixed Numbers, and more.
The short-cuts in this book require no special math ability. If you can do ordinary arithmetic, you will have no trouble with these methods. There are no complicated formulas or unfamiliar jargon — no long drills or exercises. For each problem, the author provides an explanation of the method and a step-by-step solution. Then the short-cut is applied, with a proof and an explanation of why it works.
Students, teachers, businesspeople, accountants, bank tellers, check-out clerks — anyone who uses numbers and wishes to increase his or her speed and arithmetical agility, can benefit from the clear, easy-to-follow techniques given here.

More books from Dover Publications

Cover of the book Swing Low, Swing Death by Gerard W. Kelly
Cover of the book Handbook of American Indian Games by Gerard W. Kelly
Cover of the book Zion in America by Gerard W. Kelly
Cover of the book Napoleon's Military Maxims by Gerard W. Kelly
Cover of the book Atomic Physics: 8th Edition by Gerard W. Kelly
Cover of the book Another Fine Math You've Got Me Into. . . by Gerard W. Kelly
Cover of the book Numerical Methods for Scientists and Engineers by Gerard W. Kelly
Cover of the book Introduction to Mathematical Fluid Dynamics by Gerard W. Kelly
Cover of the book Non-Equilibrium Thermodynamics by Gerard W. Kelly
Cover of the book Lectures on Ordinary Differential Equations by Gerard W. Kelly
Cover of the book The Annotated Innocence of Father Brown by Gerard W. Kelly
Cover of the book Robota by Gerard W. Kelly
Cover of the book Geometric Themes and Variations by Gerard W. Kelly
Cover of the book Death for Madame by Gerard W. Kelly
Cover of the book On Mars by Gerard W. Kelly
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy