Synopses & Reviews
Entertaining, easy-to-follow suggestions for developing greater speed and accuracy in doing mathematical calculations. Surefire methods for multiplying without carrying, dividing with half the pencil work of long division, plus advice on how to add and subtract rapidly, master fractions, work quickly with decimals, handle percentages, and much more.
Synopsis
This entertaining, easy-to-follow book is ideal for anyone who works with numbers and wants to develop greater speed, ease, and accuracy in doing mathematical calculations.
In an inspiring introduction, science writer Edward Stoddard offers important suggestions for mastering an entirely new system of figuring. Without having to discard acquired information about mathematical computation, students build on the knowledge they already have, streamline these techniques for rapid use and then combine them with classic shortcuts.
Initially, readers learn to master a basic technique known as the Japanese "automatic" figuring method the principle behind the abacus. This method enables users to multiply without carrying, divide with half the written work of long division, and mentally solve mathematical problems that usually require pencil and paper or a calculator. Additional chapters explain how to build speed in addition and subtraction, how to check for accuracy, master fractions, work quickly with decimals, handle percentages, and much more.
A valuable asset for people in business who work with numbers on a variety of levels, this outstanding book will also appeal to students, teachers, and anyone looking for a reliable way to improve skill and speed in doing basic arithmetic."
Synopsis
Entertaining, easy-to-follow suggestions for developing greater speed and accuracy in doing mathematical calculations. Surefire methods for multiplying without carrying, dividing with half the pencil work of long division, plus advice on how to add and subtract rapidly, master fractions, work quickly with decimals, handle percentages, and much more.
Synopsis
An invaluable reference for people in business as well as students, teachers, and anyone who wants to improve mathematical skills, this entertaining, easy-to-follow guide is ideal for anyone who works with numbers and wants to develop greater speed, ease, and accuracy in doing mathematical calculations. Index. Bibliography.
Synopsis
Entertaining, easy-to-follow suggestions for developing greater speed and accuracy in doing mathematical calculations. Surefire methods for multiplying without carrying, mastering fractions, working quickly with decimals, handling percentages, and much more.
Table of Contents
INTRODUCTION
1 NUMBER SENSE
2 COMPLEMENT ADDITION
3 BUILDING SPEED IN ADDITION
4 COMPLEMENT SUBTRACTION
5 BUILDING SPEED IN SUBTRACTION
6 NO-CARRY MULTIPLICATION
7 BUILDING SPEED IN MULTIPLICATION
8 SHORT-HAND DIVISION
9 BUILDING SPEED IN DIVISION
10 ACCURACY: THE QUICK CHECK
11 ACCURACY: THE BACK-UP CHECK
12 HOW TO USE SHORTCUTS
13 BREAKDOWN
14 ALIQUOTS
15 FACTORS
16 PROPORTIONATE CHANGE
17 CHOOSING AND COMBINING SHORT CUTS
18 MASTERING FRACTIONS
19 SPEED AND EASE IN DECIMALS
20 HANDLING PERCENTAGES
21 BUSINESS ARITHMETIC
BIBLIOGRAPHY