DEVELOPMENT OF NUMBERS AND OPERATIONS

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Across
  1. 2. first person to use the Greek letter pi to represent our modern day pi
  2. 5. earliest civilization to use number 'zero'
  3. 7. babylonian numerals system cuneiform
  4. 8. book Liber Abaci was written by Fibonacci
  5. 11. name of egyptian numeral system and was the earliest number system hieroglyphics
  6. 12. type of surface used by the ancient to write any mathematicals notes
  7. 13. vii in roman is number
Down
  1. 1. Kitâb al-Jem wa’l Tafrîq bi Hisâb al-Hind was written by
  2. 3. the egyptian use 'and' as operation of
  3. 4. fibonacci found a series number which the name was given as
  4. 6. vigesimal is number system of
  5. 9. the chinese was the first to use it in numerals system
  6. 10. rod number system was used by the chinese