How can I start mental calculating

[Josh (Josh Cohen)]

I read part of Secrets of Mental Math and it was good. He also has a course.

Here are some discussions that might have useful information:

Help choosing a system for mental math

I apologize for what probably appears as a redundant thread. I actually did read through all the others, but there didn’t seem to be a consensus about which mental math system is best. I’m guessing this is because “best” really depends on what you’re hoping to achieve, so I’ll start there. I’m looking for a system that allows for rapid multiplication of large numbers (maybe up to 4 x 4) and computation of square roots (and perhaps other fractional powers), and I’d like to do this without lookin…

Kinma mentioned some books here:

Best books on Math prodigies and Speed Math

Thanks to our dear forum member Greymatters, this book can be read online: http://headinside.blogspot.nl/2014/05/free-math-magic-books.html

Nodas mentioned some books here:

The best Methods Mental Math

Hi Sharad and greetings to Nepal I use the criss-cross algorithm. You can find more information here or even more thoroughly at Robert Fountain’s and Jan Van Koningsveld’s book: The Mental Calculator’s Handbook Nodas

More discussions:

Improving Mental Calculation Skill

Start young and pick the right parents is a good place to start but for those of who have already past that point… The first few weeks results and looking for pointers… Daily Practice seems pretty obvious… I’ve been using JimmyR’s speedmath app as a practice tool. My flexibility in 2x2 multiplication is improving rapidly over the last few weeks and I suspect my speed will increase once I improve 1) my speed at deciding on an appropriate algorithm 2) reduce basic calculation errors. 3x3 Mul…

General discussion of mental maths

[Webmaster’s note: the original post was removed, but the mental math conversation continues below.]

Schools of Mental Calculation

This thread is for compiling the different systems of mental math as well as books and training tools. I’ll link to pages about some of the methods I’ve heard of: https://en.wikipedia.org/wiki/Mental_calculation https://artofmemory.com/wiki/Trachtenberg_System/ https://en.wikibooks.org/wiki/Mental_Math https://www.vedicmaths.org/introduction/tutorial/tutorial.asp Practice sites: http://windhoff.net/mental_arithmetic/#Multiplication Post links if you know of any good information on the su…