The Trachtenberg speed system of basic mathematics
by Ann Cutler · first published 1960
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2015–2023first – last mentioned
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Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System. Ever find yourself struggling to check a bill or a payslip? With The Trachtenberg Speed System, you can. Described as the 'shorthand of mathematics', the Trachtenberg system only requires the ability to count from one to eleven. Using a series of simplified keys allows anyone to master calculations, giving greater speed, ease in handling numbers, and increased accuracy. Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate. He devised a set of rules that allows every
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Greg, was it you who recommended Ready Player One to me? Looks like I already bought it on my Kindle on $MYSTERYPERSON's recommendation, so now I'd better read it! Here's an odd one of mine: The Trachtenberg Speed System of Basic Mathematics I checked this out from the Scottsdale library when I was 11. I'd learned all the usual algorithms to multiply and divide and do basic arithmetic, but like most kids, I assumed that those were the only…
on “Career-Changing Programming Books” ↗+1 for The Trachtenberg Speed System of Basic Mathematics. I remember learning that system decades ago, and have always kicked myself for lending my copy of the book. I never got it back, and have stopped lending any books I value no matter who. Funnily, after…
on “Career-Changing Programming Books” ↗…[1] (aside, this book should be in the public domain by now) [1] https://math.ucr.edu/~res/math138A-2012/polya.pdf There are other books that train folks on how to do mental mathematics like * The Trachtenberg Speed System of Basic Mathematics https://www.abebooks.com/products/isbn/9780285629165/3011837... * Secrets of Mental Math https://www.abebooks.com/products/isbn/9780307338402 I found this neat publication from the American Mathematical…
on “What use is mental math in 2022?” ↗…"Vedic" knowledge as part of an anti-colonialist project. Actually looking at it now, it uses the vinculum slightly differently, e.g. uses 31̅ to mean 29 rather than 39. Another book in that genre is The Trachtenberg Speed System Of Basic Mathematics though it doesn't go as far.)
on “Early Times (Multiplication)” ↗…https://www.youtube.com/watch?v=37meAwQqPsE Later, it is said she is using the Trachtenberg system: https://en.wikipedia.org/wiki/Trachtenberg_system The square root method seems to be described in the book "The Trachtenberg speed system of basic mathematics", the text is available on archive.org: https://archive.org/stream/TheTrachtenbergSpeedSystemOfBasic... (search for "square root").