E the tricks and yes I *EXPECT THE AVERAGE PERSON WILL NEED *the average person will need 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 Fantastic book If you ove math or would just ike to be able to struggle ess with it this book is a great tool One caveat however don t expect magically easy math __abilities Benjamin shows you the tools to make mental math problems exponentially easier but at the end of the day you __Benjamin shows you the tools to make mental math problems exponentially easier but at the end of the day you need to calculate Now with that out of the way

you calculate suares and 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 digit Bottom ine get this book if you want to nerd out and work your math muscles 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 com 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 earned them elsewhere The processes described were sometimes just brute mathematics reuiring 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 easy it s fun With the neat mathematical magic tricks at the end to cap it off this book was back up to 4 stars for me Special thanks to NATALYA ST CLAIR for typesetting the initial draft which was partly supported by a grant from the Mellon Foundation Learn maths secrets for the real world from shopping to calculating a restaurant tip and figuring out gambling odds or how much you've won Learn how to solve sudoku fast. I LOVE this book ItCan You Calculate Suares And

__s a nerd s dream come true for me I checked it out from the__a nerd s dream come true for me I checked it out from the and had it for at east two months It pained me to give it back I m going to buy it soon as I get money These tricks are so wonderful it s a wonder they didn t use these in school I oved 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 *for 20 digits this made it super easy 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 LOVE this book I m cheesing writing this ol Go read it If you only read one part I suggest the Pi bit As a nerd who is desperate for attention but also very Cinderella Unmasked (Fairytale Fantasies lazy this book was a godsend Arthur Benjamin s mental math tips are very easy toearn yet still appear impressive to the casual observer Towards the end of the book there are some real showstoppers but even if one only gets halfway through the tricks you could still impress people at a party a very ame party The author is enthusiastic but somehow this enthusiasm doesn t transmit to the reader The tricks work but I am incredibly bored by this book regardless might have worked better with real ife examples but I for one am hard pressed to think of a good real The Power Of A Choice life reason to multiply a pair of two digit numbers in your head 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 heearned memory techniues that allowed him to recall hundreds of digits of pi to earn the names of dozens of strangers in minutes and to memorize the order of an entire 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 is the so called mem. How to calculate almost anything in your head Did you know that it's easier to add and subtract from eft to right rather than the other way round You can be taught to su. .

Ory palace converting information into images and then placing these images in a familiar space Using this method I was able #To Memorize Well Over One # memorize well over one digits of pi I even managed to earn the order of a few decks of cardsThis was impressive in itself and a *testament to the efficacy of these techniues Even so earning the techniues was itself time consuming and without *to the efficacy of these techniues Even so earning the techniues was itself time consuming and without practice I was

__Sluggish Both In Committing__both in committing memory and recalling information You cannot become a memory athlete without significant practice What was worse these systems only really 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 end in 5 multiplying two digit numbers with the same first digit and second digits that sum to 10 which I admit was a ittle bit harder to have explained but as soon as I got it it became ridiculously valuable Beyond that I Oh My God, What a Complete Aisling 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 savantsike 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 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 Monsieur Pain limitations became apparent Couldn t read through the entire 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 enough to inspire the me to practic. Are a three digit number in seconds Learn how to performightning calculations in your head discover methods of incredible memorisation and other feats of mental agility. ,