Short-Cut Math |  | Author: Gerard W. Kelly
Publisher: Dover Publications
List Price: $3.95
Buy Used: $0.01
as of 11/24/2009 03:22 CST details
You Save: $3.94 (100%)
New (33) Used (106) from $0.01
Rating:  6 reviews
Sales Rank: 17704
Media: Paperback
Edition: Revised
Pages: 112
Number Of Items: 1
Shipping Weight (lbs): 0.3
Dimensions (in): 8.4 x 5.3 x 0.3
ISBN: 0486246116
Dewey Decimal Number: 513.92
EAN: 9780486246116
ASIN: 0486246116
Publication Date: April 1, 1984
Availability: Usually ships in 1-2 business days
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Product Description
Clear, concise compendium of about 150 timesaving math short-cuts—faster, easier ways to add, subtract, multiply and divide. Each problem includes an explanation of the method, a step-by-step solution, the short-cut solution, and proof and an explanation of why it works. No special math ability needed.
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| Customer Reviews:
Showing reviews 1-5 of 6
how to view simple math October 8, 2009
David E. Woods
2 out of 2 found this review helpful
I liked this book because it showed me how to approach simple math problems in flexible ways. In short, the techniques were like many algebra problems I had dealt with; if you don't like the form or layout of a problem, change it to something simpler or nicer or else think of it in a different way.
Great Seller September 12, 2009
dhbuyer
0 out of 2 found this review helpful
Great seller. Book was in exact condition as described. No problems. Shipment was fast. Would definitely do business with again.
Excellent Book July 25, 2009
S. Erasani
0 out of 1 found this review helpful
Very well written, Simple techniques. Very fun to read and brush up on basic skills.
What a great little book December 29, 2007
Richard M. Rollo Jr. (Montebello, CA USA)
12 out of 13 found this review helpful
What a great little book! If you are like me, doing most of your math through computers, you may find the need to go back and brush up on the fundamentals. For me, one of the most valuable sections was on how to set up a columnar addition problem to work it left to right. I can do long division, algebra....you name it...but I have had problems adding columns of numbers in the conventional manner. Perhaps its a form of dyslexia. Anyway, Kelly shows you how to work the problems left to right, which I found helpful. His explanation of aliquot relationships was better than I got in junior high.
I like the emphasis on learning to work the problem to the level of precision you need. Say, if your house is so many square feet rounded and you want to find out how much paint will cover the surface, you may require 5.452 gallons of paint, but you'll have to buy 6 gallons from the store. So what's the point of the precision?
This book is exceptionally well written. Each problem is worked out or resolved completely. When I used it, I covered up the answers and worked each problem. I spent no more than 20-30 minutes a day to keep it fresh and drudgery free.
What a neat little book October 30, 2006
Joe Waynick (Phoenix, AZ USA)
17 out of 17 found this review helpful
I live a life dominated by numbers so anything I find that speeds the manipulation of large computations is a godsend. This little book handles the equation nicely. Its unassuming stature hides a powerhouse of mathematical linguistics that brings speed and better accuracy to a wide range of numerical problem solving situations. It's simple, clean-cut approach to finding easy solutions to everyday math problems should be a tremendous help to everyone who reads it.
Showing reviews 1-5 of 6
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