Ebook Download How to Calculate Quickly: Full Course in Speed Arithmetic, by Henry Sticker
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How to Calculate Quickly: Full Course in Speed Arithmetic, by Henry Sticker
Ebook Download How to Calculate Quickly: Full Course in Speed Arithmetic, by Henry Sticker
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Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions.
- Sales Rank: #3104713 in Books
- Published on: 2012-03-15
- Original language: English
- Number of items: 1
- Dimensions: 9.02" h x .45" w x 5.98" l, .64 pounds
- Binding: Paperback
- 194 pages
From the Back Cover
Do you want to double or triple the speed with which you calculate? How to Calculate Quickly is a tried and true method for helping you in the mathematics of daily life—addition, subtraction, multiplication, division, and fractions.
The author can awaken for you a faculty which is surprisingly dormant in accountants, engineers, scientists, businesspeople, and others who work with figures. This is "number sense"—or the ability to recognize relations between numbers considered as whole quantities. Lack of this number sense makes it entirely possible for a scientist to be proficient in higher mathematics, but to bog down in the arithmetic of everyday life.
This book teaches the necessary mathematical techniques that schools neglect to teach: Horizontal addition, left to right multiplication and division, etc. You will learn a method of multiplication so rapid that you'll be able to do products in not much more time than it would take to write the problem down on paper.
This is not a collection of tricks that work in only a very few special cases, but a serious, capably planned course of basic mathematics for self-instruction. It contains over 9,000 short problems and their solutions for you to work during spare moments. Five or ten minutes spent daily on this book will, within ten weeks, give you a number sense that will double or triple your calculation speed.
Most helpful customer reviews
65 of 68 people found the following review helpful.
EXCELLENT BOOK TO IMPROVE MENTAL CALCULATION
By A Customer
I gave it a five star simply because the books is simple and very effective at getting you to learn the "art" of quick calculation.
I looked at all the others in that field. Most of them teach you tricks for quick calculation. To do certain calculation you need to remember the tricks. There are dozen of them and you just get confused. This book do not used trick but teach you "number sense" ... and how to calculate from left to right with complex number. Beleive me, I was affraid of that kind of calculation and with that book I learned a lot!
I used it because I am preparing for interviews in management consulting. Case study need you to do lots of quick mental calculation. I am very good with complex calculation but mental arithmetics is something else.
BUY THIS BOOK ... very slim, but as said before, lots lots of exercise well made and improving in difficulty ... cant say more, its the book I was looking for.
Amusing, it was first published in 1945 ...
37 of 38 people found the following review helpful.
It does what it says...
By A Customer
Long collection of exercises to improve your mental calculating ability. This book will keep you busy for quite a while. It's slim but there's a lot of exercises in it. It will give you eough familiarity with numbers to do fairly large multiplication and division (let alone addition and subtraction) in your head. Fractions included. Requires no advanced math skills of any sort. Presupposes a knowledge of basic caluculation, that's it. No algebra, geometry etc.
36 of 37 people found the following review helpful.
I have kept my copy for years
By William M.
and keep going back to it. It is important that a prospective buyer knows this book focuses on MENTAL arithmetic, i.e., no paper. If that is an interest of yours, then this is your book. If you are interested in "shortcuts", there are other books out there (though the last chapter of this book contains some of the more popular ones.) Don't think you can multiply two two-digit numbers in your head? you may be surprised.
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