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Napier's Bones

Author:
Michael Borcherds, Roy Wright
Topic:
Arithmetic, Multiplication
This is a quick demonstration of how "Napier's bones" work for multiplication of a large number (up to nine digits in this demo) by a one-digit number. A description and explanation of "Napier's bones" can be found on Wikipedia.
Change the two numbers at the top to see further examples.

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  • Arithmetic Operations
  • Exponent
  • Fractions
  • LCM and GCD
  • Logarithm

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