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Speed System of Basic Mathematics Reviews

Customer Rating:
Summary: A work of genius.
Comment: With a light-to-moderate amount of self-tuition, this system can give a complete thicko absolute power over fundamental mathematics. I don't know what else to say about it, other than that if Trachtenberg was taught worldwide in schools from grade 1 upwards then no kid anywhere would ever be called a maths dunce ever again.

If you haven't read the book this probably sounds like inane hyperbole; otherwise I bet you already thought the same thing.

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Customer Rating:
Summary: Problem here = solution here : You can now PUT your CALCULATORS up FOR SALE !
Comment: The below review goes for any edition of the book; be it paperback, hardback, new, old, in any language whatsoever.
I, however, first studied the books' danish paperback edition, published 1950'ish ::
Starting out; you really only need to know how to count one-tru-eleven.
The book sets out by presenting to you an entirely new way to 'think' multiplication: You'll learn to 'read' each individual cipher - stop memorizing of multiplication tables - . Completely mastered in about one lazy afternoon.
Soon, you will be reading and handling numbers as well as ciphers in much the same way you now read books. It's such a joy - both rewarding and addictive - ; provided only your undivided attention and wholeheartedly commitment !
Your memory will work and expand quickly; you'll find yourself dividing, multiplying and adding just for the fun of it - without any support of tools like pen & paper etc., even for billions*billions or division into like a zillion decimals !
In about one month I worked through this book cover-to-cover, read every single page of every chapter, did every single exercise over.
*** This SYSTEM is guaranteed to WORK - anyone can learn it ***
Even for someone who is not intimidated by numbers: this is the only book, you'll ever need to become the wizard of every-day-basic maths.
Do not for any reason skip any chapter or pages or the entire philosophy WILL elude you !
With pen [indeed: PEN] and paper work your way attentively and meticously through every single exercise - especially the obvious ones !
PLEASE; Stay patient with each of the examples and repeat them over until you're completely mastering its unique technique.
About half-way through this book you'll probably find calculators much too slow AND in-accurate [too few digits displayed]; You'll always vision the complete solution in your head long before you've finished punching the calculator's keypad.
The division chapters seemed the most difficult ones to me [two entirely independent and very different systems]. One is fool-proof, one is tounge-in-cheek.; you'll need to work through both of them. The latter division system is by far the most difficult part of the entire book - PLEASE brace yourself to put the extra effort into mastering it - and then SELL your CALCULATORs !
Your conception and memory skills as well as self-confidence will be instantly and permanently boosted.
Excellent self-study guide for children, too !
It's indeed the very best self-study basic-maths teacher for anyone who shyes away from basic accounting - or just wants a-trick-or-two to improve their calculating-speed.

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Customer Rating:
Summary: is it good?
Comment: well i kinda make up tricks and other ways of solving problems too..so i just want 2 kno if im gonna understand this thing..im in 7th grade

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Customer Rating:
Summary: Multiplication by 5 works !!!
Comment: Dont read it wrong. It really works

What are you taking half of and what should you add. Take half of the neighbour and only add 5 if its a uneven number. Dont add the number you have in front of you (just see if its even or odd)

Its a revolution, i will not use my calculator all the time from now. It really works.

He did the rest, how can he bee wrong.

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Customer Rating:
Summary: Method really works - Instantaneously
Comment: I have read a lot of books on speed mathematics, and without exception, they are all useless except this one. The method described here is easy. But most importantly, it scales up to larger numbers without additional complexity. This scaling up is what differentiates this method from the others.

The key to learning this method is skip the first chapter. Don't waste time in learning how to multiply by 8. Rather, start with the second chapter, the "direct method" for multiplication.

You will surprise your friends and family when they see you multiplying numbers in your head.

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