Credits
https://en.wikipedia.org/wiki/Blackboard#/media/File:Teacher_at_blackboard_(1924).jpg
Jeff Dahl, CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
https://en.wikipedia.org/wiki/Ancient_Egypt#/media/File:Pharaoh.svg
References
The Egyptian Method / Russian Peasant Multiplication (Video And A Proof)
https://en.wikipedia.org/wiki/Rhind_Mathematical_Papyrus
This method is documented in the Rind Mathematical Papyrus. The document is from ~1650 BC, which is more than 3,600 years ago.
Rind Mathematical Papyrus: http://en.wikipedia.org/wiki/Rhind_Mathematical_Papyrus
“The Mathematics of Egypt, Mesopotamia, China, India, and Islam: A Sourcebook”
How ancient Egyptians divided numbers
Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1
Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas!
If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay.
If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay.
Book ratings are from January 2023.
My Books (worldwide links)
My Books (US links)
Mind Your Decisions: Five Book Compilation
https://amzn.to/2pbJ4wR
A collection of 5 books:
“The Joy of Game Theory” rated 4.3/5 stars on 290 reviews
http://amzn.to/1uQvA20
“The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias” rated 4.1/5 stars on 33 reviews
http://amzn.to/1o3FaAg
“40 Paradoxes in Logic, Probability, and Game Theory” rated 4.2/5 stars on 54 reviews
http://amzn.to/1LOCI4U
“The Best Mental Math Tricks” rated 4.3/5 stars on 116 reviews
http://amzn.to/18maAdo
“Multiply Numbers By Drawing Lines” rated 4.4/5 stars on 37 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 112 reviews
http://amzn.to/1GhUUSH
“Math Puzzles Volume 2” rated 4.2/5 stars on 33 reviews
http://amzn.to/1NKbyCs
“Math Puzzles Volume 3” rated 4.2/5 stars on 29 reviews
http://amzn.to/1NKbGlp
2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with 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.
My Blog
https://mindyourdecisions.com/blog/
Twitter
Tweets by preshtalwalkar
Instagram
https://www.instagram.com/preshtalwalkar/
Merch
https://teespring.com/stores/mind-your-decisions
Patreon
https://www.patreon.com/mindyourdecisions
Press
https://mindyourdecisions.com/blog/press