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Short-Cut Math

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Short-Cut Math Cover

 

Synopses & Reviews

Publisher Comments:

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.

Synopsis:

Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method. No special math ability needed.

Synopsis:

Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method. No special math ability needed.

Table of Contents

INTRODUCTION

I. FUNDAMENTALS OF SHORT-CUT METHODS

II. ADDITION

III. SUBTRACTION

IV. MULTIPLICATION

V. DIVISION

VI. "FRACTIONS, MIXED NUMBERS, AND PERCENTAGES"

INDEX

Product Details

ISBN:
9780486246116
Author:
Kelly, Gerard W.
Publisher:
Dover Publications
Author:
Gerard W. Ke
Author:
Kelly, Gerard W.
Author:
lly
Location:
New York :
Subject:
General
Subject:
General science
Subject:
Arithmetic
Subject:
Ready-reckoners
Subject:
General Mathematics
Subject:
Mathematics-Basics
Copyright:
Edition Description:
Trade Paper
Series:
Dover Books on Mathematics
Series Volume:
12
Publication Date:
19840431
Binding:
TRADE PAPER
Language:
English
Illustrations:
Yes
Pages:
112
Dimensions:
8.5 x 5.38 in 0.31 lb

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Related Subjects

Business » Investing
History and Social Science » Politics » General
Reference » Science Reference » General
Science and Mathematics » Mathematics » Algebra » Prealgebra
Science and Mathematics » Mathematics » Basics
Science and Mathematics » Mathematics » General
Science and Mathematics » Mathematics » Introduction

Short-Cut Math Used Trade Paper
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Product details 112 pages Dover Publications - English 9780486246116 Reviews:
"Synopsis" by ,
Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method. No special math ability needed.
"Synopsis" by ,
Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method. No special math ability needed.
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