Secrets of Mental Math

Posted on 06 August 2017 by Arthur Benjamin

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.Also available as an eBook Read Secrets of Mental Math Author Arthur Benjamin – kino-fada.fr 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 These 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 easy to know it to a hundred Then the figuring out the weekday 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 These 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, ...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 employ tricks to getting the math done quickly One of his first examples is how to square a two digit number that ends in 5 you need to remember only two things 1 The answer begins by multipl 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 ...Foreword by Bill Nye BILL NYE Watching 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 attention.No question 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, squaring numbers that end in 5, m Foreword by Bill Nye BILL NYE Watching 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 attention.No question 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, squaring 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 little bit harder to have explained 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 Squaring any two digit number above 30 was something I thought was reserved for savants like the guy from Pi.I feel nerdy as hell for praising...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 elsewhere The processes described were sometimes just brute mathematics, requiring you compute, then hold numbers in your head and compute again However, the second half had some cool techniques 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 sq 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 ...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 easy to learn, yet still appear impressive to the casual observer Towards the end of the book, there are some real showstoppers, but even if one o...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 getcomplex, my limitations became apparent Couldn t read through the entire book When I couldn t do what the book was suggesting, just gave up.So no reading this book wont suddenly make you a math genius.There are some interesting stories with interesting perspectives, but not enough to inspire the me to practice the tricks and yes I expect th 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 getcomplex, my limitations became apparent Couldn t read through the entire ...Special thanks to NATALYA ST CLAIR for typesetting the initial draft, which was partly supported by a grant from the Mellon Foundation DFantastic 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 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 still need to calculate Now with that out of the way, can you calcula...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 life examples, but I for one am hard pressed to think of a good real life reason to mu...I really liked this book, and its accompanying video CD The author is full of enthusiasm and the mathematical tricks are really worth learning, and so simple.I enjoyed teaching some of the tricks to my grandson, who, in turn, enjoyed showing them off to his friends and teac...

English
06 August 2017

Arthur Benjamin