[PDF/EBOOK] (Secrets of Mental Math The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks)
Showstoppers but ven if one only gets halfway through the tricks you could still impress people at a party a very lame party Foreword by Bill NyeBILL NYEWatching him was definitely the greatest time I had in science class Knowing that he advocates this book or was bought out to support it is pretty much worthy of my attentionNo uestion there is definitely useful to the point of being necessary information in this book In the first chapter ironically Chapter 0 I was introduced to a smorgasbord of various tricks that became immediately useful the rule of multiplying 11s suaring numbers that nd in 5 multiplying two digit numbers with the same first digit and second digits that sum to 10 which I admit was a little bit harder to have xplained but as soon as I got it it became ridiculously valuable Beyond that I learned how to do pretty much all math in my head Suaring any two digit number above 30 was something I thought was reserved for savants like the guy from PiI feel nerdy as hell for praising the book this much but it really is that good You might not want to be bogged down with xplanations of how to suare three digit numbers in your head but I would recommend anyone to read Chapter 0 then see how they like it or valuate if it s going to be useful to them This book helped me to re build a fresh perspective on doing math in my head He builds on a central idea of breaking down seemingly complex computations into simple manageable ones He then gives you new ways of seeing numbers such that once these various patterns become familiar you are able to One Ticket To Texas employ tricks to getting the math done uickly One of his firstxamples is how to suare a two digit number that Helpmate ends in 5 you need to remember only two things 1 The answer begins by multiplying the first digit by the next higher digit 2 The answernds in 25 For xample to suare the number 35 we simply multiply the first digit 3 by the next higher digit 4 then attach 25 Since 3 4 12 the answer is 1225 Therefore 35 35 1225 I LOVE this book It s a nerd s dream come true for me I checked it out from the library and had it for at least two months
It pained me to give it back I m going to buy it soon as I get money pained me to give it back I m going to buy it soon as I get money tricks are so wonderful it s a wonder they didn t use these in school I loved the Pi part I can recite Pi to a hundred digits now Always been a goal of mine too I was content with knowing it for 20 digits but this made it super asy to know it to a hundred Then the figuring out the weekday when you have a date Awesome The multiplying is really neat too As you can tell I just The multiplying is really neat too As you can tell I just this book I m cheesing writing this lol Go read it If you only read one part I suggest the Pi bit Some years ago on a whim I picked up Moonwalking with Einstein by Joshua Foer In that book the author a hitherto unremarkable journalist details how he learned memory techniues that allowed. Lightning uick calculations and amazing number tricks This book will teach you to do math in your head faster than you ver thought possible dramatically improve your memory for numbers and maybe for the first time make mathematics funYes ven you can learn to do seemingly complex uations in your head; all you need to learn are a few tricks You’. Fantastic book If you love math or would just like to be able to struggle less with it this book is a great tool One caveat however don t xpect magically Gypsy World: The Silence of the Living and the Voices of the Dead easy math abilities Benjamin shows you the tools to make mental math problemsxponentially Bryozoan Evolution easier but at thend of the day you still need to calculate Now with that out of the way can you calculate suares and suare roots in your head For two three no five digit numbers This book will show you the ways of these and many other fantastic mathematical prestidigitation techniues Calculate the day of the week of any calendar date Check Estimate suare roots to many decimal places Check Memorize Pi to hundreds of digits Check Use mod
SUMS TO CHECK YOUR ANSWERS CHECK to check your answers Check Bottom line get this book if you want to nerd out and work your math muscles Special thanks to NATALYA ST CLAIR for typesetting the initial draft which was partly supported by a grant from the Mellon Foundation D The author is Crisis and Continuity at the Abbasid Court: Formal and Informal Politics in the Caliphate of Al-Muqtadir (295-320/908-32) enthusiastic but somehow thisnthusiasm doesn t transmit to the reader The tricks work but I am incredibly bored by this book regardless might have worked better with real life Silvers Edge examples but I for one am hard pressed to think of a good real life reason to multiply a pair of two digit numbers in your head Two stars really isn t a fair rating Had some fun adding and subtracting and then multiplying 3 digit numbers in my head But as the problems get complex my limitations became apparent Couldn t read through thentire book When I couldn t do what the book was suggesting just gave upSo no reading this book wont suddenly make you a math geniusThere are some interesting stories with interesting perspectives but not nough to inspire the me to practice the tricks and yes I xpect the average person will need to practiceSo in fairness the 2 stars represents the bitterness I felt upon failing to become an overnight mathemagicianbut who knows maybe you can do it I slowed down about half way through this book and was ready to give it 3 stars In some cases I had discovered a fair number of the tricks on my own or had learned them lsewhere The processes described were "Sometimes Just Brute Mathematics "just brute mathematics you compute then hold numbers in your head and compute again However the second half had some cool techniues that I didn t know and while 4 or 5 digit multiplication problems are just plain difficult as the author admits 3 and 4 digit suares are doable than I would ve thought and perfect cube roots of numbers with up to 6 digits are so asy it s fun With the neat mathematical magic tricks at the nd to cap it off this book was back up to 4 stars for me As a nerd who is desperate for attention but also very lazy this book was a godsend Arthur Benjamin s mental math tips are very asy to learn yet still appear impressive to the casual observer Towards the nd of the book there are some real. 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 techniues for. ,
review Secrets of Mental Math The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks,
Him to recall hundreds of digits
OF PI TO LEARN THE NAMESpi to learn the names dozens of strangers in minutes and to memorize the order of an ntire deck of cards in the amount of time it takes me to tie my shoes I was completely captivated The idea that someone could so radically augment his mental prowess using ancient techniues appealed deeply to me Soon I set about teaching myself some of these methods The most famous and powerful the so called memory palace converting information into images and placing these images in a familiar space Using this method I was able to memorize well over one hundred digits of pi I Autobiography and Other Writings even managed to learn the order of a few decks of cardsThis was impressive in itself and a testament to thefficacy of these techniues Even so learning the techniues was itself time consuming and without significant practice I was sluggish both in committing to memory and recalling information You cannot become a memory athlete without significant practice What was worse these systems only really worked with certain types of information The techniue for memorizing cards for xample was useless when it came to remembering German vocabulary So after a few weeks I gave it upI bought this book during my brief memory trick craze but my nthusiasm had worn off before I began it Thus it languished on my shelves for many years until nowThough this book is technically co authored it seems obvious that Arthur Benjamin was the driving force behind it Michael Shermer the founder of the Skeptics Society contributed an afterword in which he argues unpersuasively that these mathematical tricks and techniues somehow aid in being skeptical though a uick calculating conspiracy theorist strikes me as perfectly plausible Benjamin meanwhile contributes the real meat of the book ways to speed up mental calculation He himself is a master of these techniues which he uses for a sort of numerical magic show there are many clips onlineBenjamin has done a wonderful job in compiling this little handbook The mathematical tools are simple Unbeatable Mind (3rd Edition): Forge Resiliency and Mental Toughness to Succeed at an Elite Level (English Edition) eBook: Mark Divine: Amazon.fr: Amazon Media EU S.à r.l. easy to use andffective I had become so reliant on the calculator in my phone that it was a relief and if you can believe it a real pleasure to return to doing sums and products myself The world of numbers can be unexpectedly fascinating revealing unusual patterns connections and symmetries
I Must Admit Howevermust admit however I mostly skipped the last section on large multiplication problems since the amount of practice reuired to properly xecute them xceeded my interest in being a human calculatorBenjamin s feats in calculation like Foer s feats in memorization show what the simple human brain can do when aided with techniues and training achieving abilities so uncanny that it can seen like magic to the uninitiated To me this fact alone is cause for hopefulness since it reveals to us the transformative power of Apocalyptic Cartography: Thematic Maps and the End of the World in a Fifteenth-Century Manuscript expertise. Ll be able to uickly multiply and divide triple digits compute with fractions and determine suares cubes and roots without blinking anye No matter what your age or current math ability Secrets of Mental Math will allow you to perform fantastic feats of the mind ffortlessly This is the math they never taught you in schoolAlso available as an Book.