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# Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks

by

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 calculat ...more## Get A Copy

Paperback, 279 pages

Published
August 8th 2006
by Three Rivers Press
(first published 1993)

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Start your review of Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks

*Moonwalking with Einstein*by Joshua Foer. In that book, the author—a hitherto unremarkable journalist—details how he learned memory techniques that allowed him to recall hundreds of digits of pi, to learn 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 anci ...more

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 ...more

"... you need to remember only two things. 1. The answer begins by multipl ...more

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 ...more

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 ...more

But as the problems get more complex, 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 ...more

Now with that out of the way, can you calculate squares and square roots in your head? For two, three-no-five digit numbers? This book will show you the ways of these and many other fa ...more

I enjoyed teaching some of the tricks to my grandson, who, in turn, enjoyed showing them off to his friends and teachers at school.

I'd recommend this book to everyone. A lot of fun! ...more

Dec 14, 2016
Samantha
rated it
really liked it

Recommends it for:
those who want maths to be simpler

Recommended to Samantha by:
an engineer

Helped me so much to make math easier. I shocked my friends into thinking I was a super genius and with this books helps I won't stop. I put it down because after a while it was starting to bore me but after a few months you can pick back up again.
...more

I used the book to prep for various interviews where I need to do math in my head FAST and without paper. This book was an excellent start. I would say that it is too brief to be exhaustive so I'd recommend consulting other materials if you're trying to learn mental math for a serious goal.

What the book does provide is a solid introduction into doing math in your head and if you get through it, you will probably end up wan ...more

Aug 04, 2013
Liz Sawyer
rated it
liked it

Recommends it for:
home-schooling parents, teachers

Recommended to Liz by:
a home-schooling parent

Shelves:
parenting-education-organization

I skimmed this book extremely fast so probably not quite fair to give it a rating. I learned several things I never knew about math. Just the chapter on multiplication in less than 5 minutes helped me understand the math curriculum theories for my sons' elementary school better than I've received from any teacher or the principal. However, it is a hard core book on math so how exciting could that really be? And it's not really a book to read, but more to work through. So I was not motivated to w
...more

Also contained within are biographies ...more

Aug 03, 2011
Mohammed Almahfoudh
added it

The author of this book calls himself a mathemagician. He combines his love to both math and magic in this book. The book introduces creative , simple and easy ways for doing algebra. When reading this book, I realized that I was already using some of the methods introduced in the book. I have to say that even though I am not a math lover, I really enjoyed reading this book and practicing its creative calculations methods. One final note, after you're done with reading the book, check out the re
...more

topics | posts | views | last activity | |
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how and when to read math | 1 | 9 | Jul 14, 2015 12:00PM |

Arthur Benjamin holds a PhD from Johns Hopkins University and is a professor of mathematics at Harvey Mudd College, where he has taught since 1989. He is a noted “mathemagician,” known for being able to perform complicated computations in his head. He is the author, most recently, of The Secrets of Mental Math, and has appeared on The Today Show and The Colbert Report. Benjamin has been profiled i
...more

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