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The contents of this book should be printed on gold leaf! A person found time to record this work whilst facing death. A work that removes the shroud of mystery that covers a branch of mathematics that holds painful memories for many people. Mental Maths. Mathematicians manipulate numbers with ease; general members of the public or school kids don't. This book shows worked examples of how to do various calculations easier and quicker than 'conventional' means. Example. 23 x 11 2 is the 'first digit' 3 is the 'last digit' 2 + 3 is the 'middle digit' So 23 x 11 = 253 Many more examples and information are presented, so that with practice the 'sums' can be done in your head. It's maths without the tears.
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Incredible
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I have an older edition of this book, and have ordered this edition for a friend. This is an incredible book, you can learn very simple techniques in minutes, that will amaze your friends and family with the speed and ease at which you can do math. You can write the answer down without any calculations as the work is done very simply in your head. This is a book I delve into from time to time, in an effort to really acquaint myself with the techniques. The only prior math’s knowledge you need is the ability to count to 10! Would revolutionise maths if we taught this in schools!
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An Excellent book for all people in all walks of life
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This book shows you a wonderful step by step method for improving mental calculations that you use everyday without realising. By learning the methods described your confidence in using mathematics will sky rocket. I cannot recommend this book highly enough.
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A great resource.
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I originally read this book when I was 13 and I have remembered it ever since. When I started vocational teaching of disadvantaged adults I remembered it and bought a copy for my students. I was impressed with what my students achieved and the faculty was astounded.
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Definately worth a read!
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A good book for those who want better mental arithmetic skills. Whilst a large number of the basic techniques applied were discovered by mathematicians well before Trachtenburg was born (Euler and Cauchy come to mind), this is almost certainly the first time that the thinking was brought to bear on simple arithmetic in such a systematic fashion.
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