Mental Math: Tricks To Become A Human Calculator (For Speed Math, Math Tricks, Vedic Math Enthusiasts, Gmat, Gre, SAT Students & Case Interview Study)

(56 customer reviews)

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Discover the Mental Math Secrets to Become a Human Calculator!

Schools taught you a way to do math that works when you have a pen & paper. But the same methods, takes a lot of effort when you have to do math in your head. This is because it uses a lot of your working memory (the short term memory used to complete a mental task).

For example, try to mentally multiply 73,201 x 3. It might take only a few seconds to multiply the individual digits. But if you multiply right to left the way you learnt in school, you will rely on your working memory. You will use it to recall every single digit you calculate to put it back together and get your final answer. You may even find yourself calculating some digits again because you forgot one of the numbers.

The difficulty increases further when you have to multiply larger numbers like 732 x 323. You will have to remember numbers across many steps. Mental arithmetic would be a lot easier to do in your head if you didn’t have to remember so many numbers.

In school, you learnt to write the down numbers as you calculate to free up your working memory. In mental math, there are many other ways to do the same thing.

One of the tricks to free up your working memory is to calculate from left to right instead of right to left. Try multiplying 73,201 x 3 from left to right, starting from 7 x 3 and ending with 1 x 3. You will find yourself calling out the answer before you even finish the whole problem.

You can use this trick to solve any math problem in the future. But we have just scratched the surface. There are many more tricks inside the book that make doing mental math as easy as reading a comic.

Here is a glimpse of what you will be able to master:

  • Mentally add large numbers(Example: Add 8739 + 5492 in your head in seconds)
  • Subtract numbers fast. (Example: Mentally subtract 7520 – 4998 without writing anything down)
  • Multiplication tricks to multiply three-digit numbers. (Example: Multiply 323 x 123 in your head)
  • Square large numbers in seconds (Example: Calculate 64 x 64 faster than a calculator)
  • Mentally divide large numbers (Example: Divide 601324 by 73 entirely in your head)
  • Quickly check a calculation with 90% accuracy without re-calculating
  • Overcome math anxiety
  • Cement your mental math skills with bonus weekly training.

This book only has the best techniques used by over 27 mental and Vedic math experts across the world. The techniques in this book are so simple you will wonder why nobody taught you this before. You will be able to master it, even if you have failed math in school.

Imagine waking up tomorrow being able to do lightning fast math in your head. Your family & friends will look at you like you are some kind of a genius. Since you do the calculations in your head, you will acquire better mental habits in the process. So you will not just look like a genius. You will actually be one.

Click Buy Now To Become A Human Calculator

Every minute you wait to buy this book, is another minute you don’t see the benefit of being good with math & numbers. Put the power of mental math to work in your life so you can quickly & easily:

  • make math and numbers more useful
  • develop better memory habits
  • increase concentration
  • develop new ways to think
  • and do speed math entirely in your head faster than a calculator!

Click Buy Now To Get This Book Today

A MUST BUY for students of Vedic Mathematics, GMAT, GRE, SAT, Case Study Interview and Case Interview.

56 reviews for Mental Math: Tricks To Become A Human Calculator (For Speed Math, Math Tricks, Vedic Math Enthusiasts, Gmat, Gre, SAT Students & Case Interview Study)

  1. Allison Loves Math

    This is a fun book. It teaches some awesome tricks for doing speed math. It’s fast and straight-forward. As a math professor, it’s helped me. It’s also helped my third grader as she’s learning how to add, subtract, multiply, etc. I also recommend it to my more advanced students, who just want to kick butt in math now and in future math classes.

  2. Dave Colello

    I used to always have trouble following along with how I was taught to do math in school. I would jump to the answer using my own method, and be told I was right, but had to do it over again, lol.
    This book was a great refresher for me of all the genius methods out there for learning math in a way that suits each person. The author says he used to hate math, and managed to self-teach himself all these wonderful time saving tricks. I can totally relate!
    Thanks for this great how to book, I’ll definitely be passing on some of the methods to my two boys starting out in school.

  3. Lori P. Kove

    This is the same system that has allowed me to effortlessly calculate numbers in my head faster than a calculator after having hated math for a good part of my life. And today, in this book, I am going to share the secret of doing mental math with you. The secret that wil changde you life the way it did mine.

  4. Shemekia Bailey

    This is a very learnable book. I read this book lots of chapters very well information found. This book changed the way I think and go about my day-to-day studying and working. The author does such a wonderful job of introducing advanced mental math techniques in a fun, easy-to-understand manner. I specifically bought the book to help me during my consulting case interviews, and it helped me tremendously! During those interviews, you are not allowed to have a calculator, so I relied heavily on the techniques that the author taught me, and they paid off! I am completely satisfied with this book.

  5. TheNovelMarket

    This book was very interesting, with a lot of detailed, and well explained methods for rapidly calculating math in your head, as well as methods for double checking and verifying that the answers you get are correct. While the book may take you a little while to get through, and learning the methods described will take time and practice, it is well worth the effort.

  6. Jesse McPherson

    The tricks and examples in the book are very useful for confirming the answers. I would recommend this book to people who struggle with mathematics. Ha vent yet even finished the books, but the mental math tricks I am learning are astounding! Feel like a math genius .

  7. JDR@

    Everything written in this book makes sense, definitely a good read! I recommend this book and would read more books from this author.

  8. Keith Haughton

    As a very non-Math kind of person, I really appreciated the way that the author designed this book. Each chapter develops from the previous one, and there are easily-accessible links that will help you to practice and refine your Math skills. I also think it’s great that the author developed a website to assist people who are either struggling with Math or would like to participate in a community of fellow learners. I recommend this book for all types of Math people: beginners, intermediate, and advanced.

  9. Kip Krenz

    Life was good until it decided to punch in the face. This was a critical day of his life. In another 30 minutes, the results of his exam were going to be out. It’s an exciting guide forever. I hope this guide will help with speed math, math tricks etc. Overall excellent guidebook from the creator.

  10. Keefe Carpenter

    This book gave me loads of ways to get quicker at doing math. I could never do division in my head unless it was a small number until now

  11. Ram

    Highly recommended book to hone your mental math skills. The explanations and example is very easy to understand. There is no age where this book stops being useful

  12. Byron H.

    Simple examples. Good practice examples. The book is not difficult in reading and content. You have to be goal oriented and finish the book.

  13. KD

    You need to read this book a couple of months before you math exam to reach the speed you are happy with. Don’t buy this book and expect to be a math genius overnight. However the book is really useful if you are willing to put in the time to hone your math skills.

  14. Elakkiya

    If you want to sharpen your brain and think of numbers in a new way then this book is definitely for you. The tricks I learnt I taught my daughter and she has started to learn to love math.

  15. Rahul Bhamitipati

    If you want to be sharper when it comes to math, then this book is for you. I was pretty good with math already and I got this book because I was curious to see how much more better I can get. I can safely say that this book did not disappoint.

  16. Tim Berners-Lee

    Los mejores 3,57€ invertidos en mucho tiempo (versión electrónica). Te enseña a re-aprender las matemáticas básicas como sumas, restas, multiplicaciones y divisiones. Pero usando números grandes y mediante cálculos mentales. De las 298 páginas, llevo casi el 40% completado en mis ratos libres y en un lapso de 2h. Totalmente recomendable.

  17. Antonio M.

    Esta siendo util para ilustrar mis clases con ejemplos que permitan a los estudiantes a pensar en matemáticas más ágilmente.

  18. sonny pham

    The material in the book are tips and trick but they’re really good tips and tricks. My only irk with the book is how often the author tries to push his website on you.

  19. Ben

    Good book, BUT some practice problem solutions are just completely wrong. 77 – 55 is not 16.

  20. Jennifer Vail

    My math obsessed elementary school age son loved it!

  21. AW 2017

    A fun easy to read book for gifted 6 year old.

  22. Kimbo

    Great book

  23. Clifford M Surncey Jr.

    As a young student learning math I have always loved the joy and logic of equations. This is an excellent publication for any person, young or old who loves improving their thinking process by becoming a human calculator !

  24. NQH

    There are some good tricks to do math faster. However there are some which is not easy to understand. For example, flagpole method and pair products (3digits multiplication). I suggest author to make videos and insert link into the book.
    Just read it.

  25. Lian Kay Sean

    Ive been following ofpad since its udemy programme. I am certain this is the definitive mental math guide to get you started on the right track!

  26. Yeung Tik Ki

    The book is quite easy to follow. Some techniques are useful

  27. A Dimitri Amin

    Good book.

  28. Julian

    Great book with a method and tricks to get your mind to calculate really fast. Totally recommended.

  29. Williams Bruce Gonzaga

    Muito bom!

  30. amarnath

    My only regret is not finding it sooner. There is nothing arcane about Mental math- anyone and everyone can master it. Highly recommend to anyone who wants to improve themselves or have fun with numbers.

  31. JJ

    If you spend the time learning the techniques in this book and practice them it is amazing how much more efficient you can be at doing mental math. I also recommend the Udemy course that the author has but together to augment the text.

  32. Virginia M.

    Since school (a million years ago) I had always depended on a calculator for math. But this book has simple techniques that enable you to quickly do math in your head. No calculator required.

  33. Hichem

    I like it , there are lot of practises and it gave me al method to learn

  34. Joe

    This book is very easy to follow and provide you with the techniques to become a person who longer fears numbers great book great author….

  35. Allison

    The learning is easy with this book.

  36. Eddie Palmon T

    This book is actually helping me! I’m 69 years old and suffered a stroke a couple of months ago. This book is making me use my brain in a way I have not done before. I am glad I came across the great book and the website, too! If you want to learn something useful that you will use for a long time, you need this book!

  37. rupert14

    Preis-Leistungsverhältnis ist sehr gut, da kann man nicht meckern. Ein-zwei Techniken, die ich nicht kannte (ich habe schon einiges in dieser Richtung gelesen).

    Der Schreibstil gefällt mir nicht immer; einiges könnte klarer sein & der ständige Verweis auf die eigene Homepage stört.

    Aber bei dem Preis – gerne eine uneingeschränkte Empfehlung. Die Arbeit (das Üben) muß man dann selber machen.

  38. Joseph W. Esler

    This book helps you do sophisticated math problems. It breaks down everything in a step-by-step approach. Well worth the money. The techniques should be included in high school and college math classes. The author makes even the most complex calculations seem easy. I highly recommend this book.

  39. James D. Richardson

    Excellent instruction, the author goes into great detail, a fine explainer and knows what he is talking about. Recommended.

  40. shan wen chen

    Alot of useful tips, and ideas that is new to me, or I would never think of. very info book worth to read.

  41. Abdullah Ali

    Nice book enjoy read very helpful we easy to understand well written.I very much love to read some of his works

  42. L. V

    It nicely breaks down calculation techniques which are applicable in everyday life.

  43. John Gregory

    This book has blown my mind, in a good way. As a child, I was awful at math. Probably due to being taught the wrong way, as I see now. This is really going to help my accounting studies.

  44. Tali

    The book is great for its purpose but the marketing is really off putting. I still recommend it, but I also recommend the author minimize the marketing (beginning and end is really enough) and allow the students to focus on the knowledge he’s offering.

  45. Alex S.

    Very informative and well written. Opened my eyes to some very impressive techniques for doing mental arithmetic effortlessly. Would recommend.

  46. STKBN

    Bem da hora.

  47. Ben D.

    The book, at this price is really good value.

  48. Steve

    This book is a star find, a great introduction into making mental mathematics attainable for anyone. With plenty of explanations and practice questions included.

  49. Davide D

    The book is very clear and easy to understand, not too long. Useful the exercises provided

  50. SNap

    About a third of the way through this book and have picked up a lot already – definitely think it will help speed up my mental maths 🙂

  51. Manoj bakshi

    II was very useful and practical experience while going through the book some tech were known to me and some were very good..Looking forward to more such books for enhancing my maths skills..Thanks

  52. Edward Taylor

    I loved the fast delivery

  53. Saad Al-Khatib

    This book was so helpful in giving a variety of efficient and simple mental math strategies.

  54. Scott H

    Has some great techniques. I highly recommend this as am introduction to mental math. I’ve put many of the strategies to use and they work.

  55. Steve Wallace

    This is an incredible book. It covers so many topics and methods of mental calculation to make you a human calculator. I can tell plenty of work was put into it. If you are learning mental math tricks, and want a great resource of tricks, this book is totally for you.

  56. Paul C. Elmore

    I think with a little practice this may give me the help I need.

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