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people looking for works in cities are immersed in english as the lingua franca of the mobile phone and the urban hustle – more effective instigations to reading than decades of work by traditional publishers and development agencies. the legal publishing industry campaigns to convince people to scorn pirates and plagiarists as a criminal underclass, and to instead purchase copyrighted, barcoded works that have the look of legitimacy about them. they work with development industry officials to 'foster literacy' – meaning to grow the legal book trade as a contributor to national economic health, and police what and how the newly literate read. but harried cash-strapped audiences will read what and how they can, often outside of formal economies, and are increasingly turning to mobile phone platforms that sell texts at a fraction of the price of legally printed books (1)
the farther we get from our grade school days, the easier it is to forget those operations and nuances of arithmetical computation that keep recurring in our daily lives: interest and discount problems, time-payment calculations, tax problems, and so on. this handy book is designed to streamline your methods and resharpen your calculation skills for a variety of situations. starting with the most elementary operations, the book goes on to cover all basic topics and processes of arithmetic: addition, subtraction, multiplication, division, fractions, percentage, interest, ratio and proportion, denominate numbers, averages, etc. the text continues into other useful matters, such as powers and roots, logarithms, positive and negative numbers, harmonic progression, and introductory concepts of algebra. entirely practical in approach and using an easy-to-follow question and answer style, this book covers a wide range of common knotty areas: filling and emptying receptacles, scales for models and maps, business and financial calculations (partial payment problems, compound interest, bank and sales discount, profit and loss problems, etc.), angle measurement, mixtures and solutions, graph and chart problems, and the like. the discussion contains numerous alternate and short-cut methods, such as quick ways to figure compound interest; to square a number from 1 to 100; to divide by 5, 25, 125, 99, etc.; to multiply two 2-digit numbers having the same figure in the tens place; and many more. these valuable tips, together with the huge fund of exercise problems (a total of 809, half of them answered in an appendix), help you to increase your computational proficiency and speed, and make this an extremely useful volume to have on your shelf at home or at work. anyone who has to do any figuring at all -- housewife, merchant, student -- will profit from this refresher. parents will find it an excellent source of material for helping children in school work. show more (1)

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1 图书 Underdevelopment and African Literature
责任者 Sarah Brouillette

出版信息 ,28/01/2021

ISBN 978-1-108-71378-8

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Sarah Brouillette.Underdevelopment and African Literature.,28/01/2021.
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Underdevelopment and African Literature

Sarah Brouillette.,28/01/2021.
2 图书 Arithmetic Refresher
责任者 A. A. Klaf

出版信息 Dover Publications, Inc. ,1964

ISBN 978-0-48621-241-8

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A. A. Klaf.Arithmetic Refresher.Dover Publications, Inc.,1964.
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Arithmetic Refresher

A. A. Klaf.Dover Publications, Inc.,1964.

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