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    Speed Mathematics: Secrets Skills for Quick Calculation: Secret Skills for Quick Calculation

     
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    Speed Mathematics: Secrets Skills for Quick Calculation: Secret Skills for Quick Calculation

    Description

    Using this book will improve your understanding of math and have you performing like a genius!
    People who excel at mathematics use better strategies than the rest of us; they are not necessarily more intelligent.
    Speed Mathematics teaches simple methods that will enable you to make lightning calculations in your head-including multiplication, division, addition, and subtraction, as well as working with fractions, squaring numbers, and extracting square and cube roots. Here's just one example of this revolutionary approach to basic mathematics:
    96 x 97 =
    Subtract each number from

    1. 96 x 97 =
    4 3
    Subtract diagonally. Either 96--3 or 97--
    1. The result is the first part of the answer.
    96 x 97 = 93
    4 3
    Multiply the numbers in the circles. 4 x 3 =
    1. This is the second part of the answer.
    96 x 97 = 9312
    4 3
    It's that easy!

    Product details

    EAN/ISBN:
    9780471467311
    Edition:
    1. Auflage
    Medium:
    Paperback
    Number of pages:
    272
    Publication date:
    2003-11-07
    Publisher:
    John Wiley & Sons
    Languages:
    english
    EAN/ISBN:
    9780471467311
    Edition:
    1. Auflage
    Medium:
    Paperback
    Number of pages:
    272
    Publication date:
    2003-11-07
    Publisher:
    John Wiley & Sons
    Languages:
    english

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