Your fingers are secretly a powerful calculator

What witchcraft is this?! You can easily multiply numbers from 6 to 10 just by counting your fingers. #math #math #mathematics #shorts

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Book reviews are as of January 2022.

My books (global links)
https://mindyourdecisions.com/blog/my-books/#worldwide

My books (links to the United States)
Be careful with your decisions: compilation of five books
https://amzn.to/2pbJ4wR
A collection of 5 books:
/"The Joy of Game Theory/" rated 4.2/5 stars out of 224 reviews
http://amzn.to/1uQvA20
/"The Illusion of Irrationality: How to Make Intelligent Decisions and Overcome Biases/" rated 4/5 stars from 24 reviews
http://amzn.to/1o3FaAg
/"40 paradoxes in logic, probability and game theory/" rated 4.1/5 stars out of 38 reviews
http://amzn.to/1LOCI4U
/"The best mental arithmetic tips/" rated 4.2/5 stars from 76 reviews
http://amzn.to/18maAdo
/"Multiply numbers by drawing lines/" rated 4.3/5 stars out of 30 reviews
http://amzn.to/XRm7M4

Mind your puzzles: Collection of volumes 1 to 3
https://amzn.to/2mMdrJr
A collection of 3 books:
/"Math Puzzles Volume 1/" rated 4.4/5 stars on 87 reviews
http://amzn.to/1GhUUSH
/"Math Puzzles Volume 2/" rated 4.1/5 stars out of 24 reviews
http://amzn.to/1NKbyCs
/"Math Puzzles Volume 3/" rated 4.2/5 stars from 22 reviews
http://amzn.to/1NKbGlp

Nominated for the 2017 Shorty Awards. Mind Your Decisions was nominated in the STEM (science, technology, engineering and mathematics) category alongside eventual winner Bill Nye; finalists Adam Savage, Dr Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin and Nerdwriter.

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