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How did the ancients use numbers?

How did the ancients use numbers?. By Davina Bacon 7MKR. Introduction. This Powerpoint is to teach you about how the ancients used numbers and how modern numbers were created. I hope you enjoy it. Historical Facts!. At first, the people of Europe used Roman numerals

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How did the ancients use numbers?

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  1. How did the ancients use numbers? By Davina Bacon 7MKR

  2. Introduction This Powerpoint is to teach you about how the ancients used numbers and how modern numbers were created. I hope you enjoy it.

  3. Historical Facts! • At first, the people of Europe used Roman numerals • The new modern digits came from India as they were made by the Hindus • The Arabic traders transmitted the numbers to Europe • A man called Fibonacci helped the numbers to be accepted in Europe

  4. Fibonacci • His real name was Leonardo of Pisa • He is famous for his sequence • He wrote a book called Liber Abaci about the new numbers to help them be accepted.

  5. Introduction of zero in Europe • The number zero confused the medieval people – they didn’t understand that they needed a sign for nothing. • The Indian mathematician, Brahmagupta, gave rules for the use of zero in his book as he knew most people didn’t understand it. He got a little bit wrong when he wrote about multiplication. • Ptolemy (a Greek astrologer) was the first Greek to write the number zero like this:

  6. Expansion of Maths • With the new numbers the medieval people could understand negative numbers better. • Maths could be done quicker and more efficiently than before. • It was easier than Roman numerals to work out what each number was.

  7. Foreign Numbers • The Egyptians had a system which was unary (they didn’t need a placeholder) and they used symbols. • The Greeks also had an unary system and used special letters. • The Babylonians had a positional number system but for many years they didn’t use a place holder – even though they really needed one. • Egyptian Numbers (below)

  8. Conclusion Summary I hope you have learnt something in this Powerpoint about how the ancients used numbers and how Europe used them. I also hope you enjoyed the Powerpoint. Thanks for watching! 

  9. Bibliography • www.history.mcs.st-andrews.ac.uk/HistTopics/Arabic_numerals.html • www.eyelid.com • http://peple.lis.illnois.edu/~chip/projects/timeline/600oberlander.html • theosophical.wordpress.com • www.princeton.edu/~achaney/tmve/wiki100k/docs/Arabic_numerals.html • www.maths.surrey.ac.uk • www.mathacademy.com • Edition.englishclub.com • http://gwydir.demon.co.uk/jo/numbers/interest/zero.htm

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