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Author: Яна Малова
Publisher: Litres
ISBN: 5042372237
Category : Mathematics
Languages : en
Pages : 344
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Book Description
This manual includes all possible combinations of single and double digits at the level “SIMPLE” (addition). The collection contains more than 700 examples (10 options), divided into sections according to the composition of numbers.The manual is designed to solve examples of mental arithmetic at the “SIMPLE” level on the abacus and mentally. It is recommended to use both for self-development of the acquired counting skills, and in preparation for classes and tests in mental arithmetic.
Author: Яна Малова
Publisher: Litres
ISBN: 5042372237
Category : Mathematics
Languages : en
Pages : 344
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Book Description
This manual includes all possible combinations of single and double digits at the level “SIMPLE” (addition). The collection contains more than 700 examples (10 options), divided into sections according to the composition of numbers.The manual is designed to solve examples of mental arithmetic at the “SIMPLE” level on the abacus and mentally. It is recommended to use both for self-development of the acquired counting skills, and in preparation for classes and tests in mental arithmetic.
Author: Michael Shermer
Publisher: Souvenir Press
ISBN: 0285640666
Category : Mathematics
Languages : en
Pages : 237
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Book Description
Did you know that it's easier to add and subtract from left to right, rather than the other way round? And that you can be taught to square a three-digit number in seconds? In Think Like A Maths Genius, two mathematicians offer tips and tricks for doing tricky maths the easy way. With their help, you can learn how to perform lightning calculations in your head, discover methods of incredible memorisation and other feats of mental agility. Learn maths secrets for the real world, from adding up your shopping and calculating a restaurant tip, to figuring out gambling odds (or how much you've won) and how to solve sudoku faster.
Author: Arthur Benjamin
Publisher: Crown
ISBN: 030734746X
Category : Mathematics
Languages : en
Pages : 306
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Book Description
These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers, and—maybe for the first time—make mathematics fun. Yes, even you can learn to do seemingly complex equations in your head; all you need to learn are a few tricks. You’ll be able to quickly multiply and divide triple digits, compute with fractions, and determine squares, cubes, and roots without blinking an eye. No matter what your age or current math ability, Secrets of Mental Math will allow you to perform fantastic feats of the mind effortlessly. This is the math they never taught you in school.
Author: Sanjoy Mahajan
Publisher: MIT Press
ISBN: 0262265591
Category : Education
Languages : en
Pages : 152
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Book Description
An antidote to mathematical rigor mortis, teaching how to guess answers without needing a proof or an exact calculation. In problem solving, as in street fighting, rules are for fools: do whatever works—don't just stand there! Yet we often fear an unjustified leap even though it may land us on a correct result. Traditional mathematics teaching is largely about solving exactly stated problems exactly, yet life often hands us partly defined problems needing only moderately accurate solutions. This engaging book is an antidote to the rigor mortis brought on by too much mathematical rigor, teaching us how to guess answers without needing a proof or an exact calculation. In Street-Fighting Mathematics, Sanjoy Mahajan builds, sharpens, and demonstrates tools for educated guessing and down-and-dirty, opportunistic problem solving across diverse fields of knowledge—from mathematics to management. Mahajan describes six tools: dimensional analysis, easy cases, lumping, picture proofs, successive approximation, and reasoning by analogy. Illustrating each tool with numerous examples, he carefully separates the tool—the general principle—from the particular application so that the reader can most easily grasp the tool itself to use on problems of particular interest. Street-Fighting Mathematics grew out of a short course taught by the author at MIT for students ranging from first-year undergraduates to graduate students ready for careers in physics, mathematics, management, electrical engineering, computer science, and biology. They benefited from an approach that avoided rigor and taught them how to use mathematics to solve real problems. Street-Fighting Mathematics will appear in print and online under a Creative Commons Noncommercial Share Alike license.
Author: Henry Sticker
Publisher: Courier Corporation
ISBN: 0486318729
Category : Mathematics
Languages : en
Pages : 211
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Book Description
Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.
Author: Jacqueline Stedall
Publisher: OUP Oxford
ISBN: 0191633968
Category : Mathematics
Languages : en
Pages : 144
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Book Description
Mathematics is a fundamental human activity that can be practised and understood in a multitude of ways; indeed, mathematical ideas themselves are far from being fixed, but are adapted and changed by their passage across periods and cultures. In this Very Short Introduction, Jacqueline Stedall explores the rich historical and cultural diversity of mathematical endeavour from the distant past to the present day. Arranged thematically, to exemplify the varied contexts in which people have learned, used, and handed on mathematics, she also includes illustrative case studies drawn from a range of times and places, including early imperial China, the medieval Islamic world, and nineteenth-century Britain. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Author:
Publisher: Frank Schaffer Publications
ISBN: 9781936024100
Category : Mathematics
Languages : en
Pages : 0
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Book Description
Presents math strategies designed to help students break down problems and compute answers without the aid of written or calculator computation.
Author: Isaac Asimov
Publisher:
ISBN:
Category : Juvenile Nonfiction
Languages : en
Pages : 200
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Book Description
Describes shortcuts to use in solving problems in addition, subtraction, multiplication, division, decimals, and fractions.
Author: Gerard W. Kelly
Publisher: Courier Corporation
ISBN: 0486131521
Category : Mathematics
Languages : en
Pages : 127
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Book Description
Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method. No special math ability needed.
Author: Alan Parker
Publisher: Pascal Press
ISBN: 9781741251821
Category : Juvenile Nonfiction
Languages : en
Pages : 100
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Book Description
Mental Maths is the maths we do in our heads without the use of calcu lators and without writing down the calculation. Mental Maths strategies are the etricks,, we use to do Maths in our heads. There are different ways of finding the answer to any Mental Maths problem, and such strate gies are the focus of this series. Even though calculators and computers play an enormous role in the modern world, we still need to go back to the basics % we do need to know how to check that the sales assistant a t the counter is giving us the right change! Mental Maths has become mor e important than ever and new primary Maths syllabuses in Australia are reflecting this. For example, NSW has placed an emphasis on Mental Maths in its primary syllabus, and even the Year 10 School Certificate examin ation has a compulsory non-calculator section. Features of this b ook include:- 32 double-page units of Mentals are included % 8 units for each school term rach unit is divided into four sets (A,B,C and D) of 20 questions each rach numbered question covers particular Maths topics throughout the book: for example, Questio n 1 always covers addition, while Question 20 always covers geometry a special e'Help' section,, at the front of the book gives differ ent strategies and explanations to help students solve Mentals problems. These are also numbered so they link to the question numbers in each Me ntals unit a eFun Spot,, unit, containing fun activities, and a eRevision,, unit are included at the end of each 8 units ext ra practice,, sections which reinforce particular strategies appear in t he lower part of each page answers to all questions are in a li ft-out section in the centre of the book
