Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
frontpagephoinix | Staff posted Jul 06, 2026 08:31 AM

Secrets of Mental Math (eBook)

$2.00

$4.99

59% off
 Amazon
10 Comments
6.6K Views
Get Deal at Amazon
Deal Details
Various Retailers have Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks by Arthur Benjamin, Michael Shermer (eBook) on sale for $1.99.

Thanks to Deal Hunter phoinix for sharing this deal.

Available from:About this book:
  • 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.

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Various Retailers have Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks by Arthur Benjamin, Michael Shermer (eBook) on sale for $1.99.

Thanks to Deal Hunter phoinix for sharing this deal.

Available from:About this book:
  • 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.

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+34
Good Deal
Get Deal at Amazon

Top Comments

AAMC27
390 Posts
63 Reputation
Sounds fun, but some of the reviews mention that the author digresses quite a lot so it may be a bit of slog after a while.
CollegeRamenEat
3974 Posts
906 Reputation
there a whole farking generation that needs this

Join The Conversation

Share information with the community. Please follow our Community Guidelines and be kind!

10 Comments

Sign up for a Slickdeals account to remove this ad.

Jul 06, 2026 09:53 AM
3,974 Posts
Joined Nov 2008
CollegeRamenEatJul 06, 2026 09:53 AM
3,974 Posts

Our community has rated this post as helpful. If you agree, why not thank CollegeRamenEat

there a whole farking generation that needs this
2
2
Jul 06, 2026 01:55 PM
390 Posts
Joined Nov 2017
AAMC27Jul 06, 2026 01:55 PM
390 Posts

Our community has rated this post as helpful. If you agree, why not thank AAMC27

Sounds fun, but some of the reviews mention that the author digresses quite a lot so it may be a bit of slog after a while.
3
Jul 06, 2026 03:04 PM
5 Posts
Joined Nov 2013
libbittaJul 06, 2026 03:04 PM
5 Posts
Kindle version only for the $1.99
Jul 07, 2026 02:23 AM
37 Posts
Joined Apr 2010
rorschaqJul 07, 2026 02:23 AM
37 Posts
We'll see
Jul 07, 2026 12:03 PM
907 Posts
Joined Jun 2012
-MoistTowelette-Jul 07, 2026 12:03 PM
907 Posts
Quote from AAMC27 :
Sounds fun, but some of the reviews mention that the author digresses quite a lot so it may be a bit of slog after a while.
2 + 2 = 5 = 3 + 3, when 2 is feeling a little more like 3 and 3 is feeling a little more like 2. But I digress.
2
Jul 07, 2026 02:13 PM
67 Posts
Joined Mar 2011
SDealsdesireJul 07, 2026 02:13 PM
67 Posts
Sounds perfect for all my stressful Debts!
Jul 07, 2026 07:27 PM
5 Posts
Joined Apr 2020
Zoo_CarJul 07, 2026 07:27 PM
5 Posts
this book is a classic, read it 10 years ago and now im a senior yr math major!
1

Sign up for a Slickdeals account to remove this ad.

Jul 07, 2026 07:38 PM
93 Posts
Joined Aug 2020
HonestWinter4283Jul 07, 2026 07:38 PM
93 Posts
Quote from -MoistTowelette- :
2 + 2 = 5 = 3 + 3, when 2 is feeling a little more like 3 and 3 is feeling a little more like 2. But I digress.
Numeral fluid?
1
Jul 07, 2026 09:56 PM
907 Posts
Joined Jun 2012
-MoistTowelette-Jul 07, 2026 09:56 PM
907 Posts
Quote from HonestWinter4283 :
Numeral fluid?
Could be. Or the 2's are feeling a little heavy and the 3's are feeling a little light. However, if I had mentioned 1's and 0's it would clearly be binary. But I digress.
Jul 08, 2026 12:16 PM
172 Posts
Joined Oct 2011
JgirwarnJul 08, 2026 12:16 PM
172 Posts
I remember seeing videos of Dr. Benjamin. Great speaker and interesting character akin to Dr. Tyson. Both very brilliant minds.

Join The Conversation

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

Books & MagazineseBooksKoboAmazonKobo eBooksGoogle Play

Popular Deals

See All
Found by MrHookup
Today 03:29 PM
Forum Thread
Amazon Amex Deal! $80 off $160 when using Amex points$80$160
50% off
10
Found by itsamazeling
Yesterday 08:53 AM
Forum Thread
Sunbeam 12" x 15" Heating Pad w/ 3 Heat Settings $11.75 + Free Shipping w/ Prime or on $35+$12$15
20% off
1
Found by phoinix
Today 04:15 PM
Forum Thread
$25.98* | Set of 5 Rubbermaid Brilliance 3.2 Cup Clear Food Storage Containers at Amazon$26$32
18% off
1
Found by phoinix
Today 08:43 AM
Forum Thread
$17.99 | Squatty Potty Original Toilet Stool 2.0 Base 7", White at Amazon$18$25
28% off
5
Found by Seshutumbalam
Today 06:20 PM
Forum Thread
(New Accounts Only) Amazon Echo DOT MAX with Alexa plus for $35$35$99
64% off
5

Trending Deals

See All
Found by idk_then
Today 06:14 PM
Forum Thread
25L Osprey Transporter Roll Top Backpack: Night Jungle Blue or Black $69.99 + Free Shipping$70$120
41% off
2
Found by SUCHaDEAL
Today 04:16 PM
Forum Thread
TARGET CIRCLE YMMV: Spend $100 on Diapers, Wipes, Baby Items at Link, earn a $20 Target Gift Card AND $30 In Circle rewards YMMV
5
Found by TealStep7567
Today 07:10 PM
Forum Thread
Manhattan complete series $5$5.00$69
92% off
0
Found by phoinix
Today 04:59 PM
Forum Thread
[SnS, AC] $4.44* | 7.8-Oz Neutrogena Hydro Boost Hydrating Facial Gel Cleanser w/ Hyaluronic Acid at Amazon$4.44$13
65% off
0
Found by phoinix
Today 04:58 PM
Forum Thread
[SnS, AC] $2.50** | 9.1-Oz Neutrogena Oil-Free Acne Fragrance Free Face Wash w/ 2% Salicylic Acid at Amazon$2.50$11
77% off
0