Russian Multiplication

Additional information

Johnny Ball on Russian and Egyptian Multiplication.

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More on Johnny Ball, including his books and live shows: https://www.johnnyball.co.uk

Russian multiplication is also known as Ethiopian multiplication.

Why Use Binary? (on Computerphile) - https://youtu.be/thrx3SBEpL8

Discuss on Brady's subreddit: https://redd.it/eyrrh9