A story of numbers

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Across
  1. 5. – Ancient Indian mathematician and astronomer who introduced advanced calculations.
  2. 6. – One of the oldest writing scripts of ancient India.
  3. 8. – Number system using letters like I, V, X, L, C, D, and M.
  4. 11. – Script used for Sanskrit and several modern Indian languages.
  5. 14. – Important numbers like 10, 100, 1000 used as reference points
  6. 17. – Ancient civilization between the Tigris and Euphrates rivers.
  7. 18. – Number system used by an ancient African civilization with symbols for powers of ten.
  8. 20. – Ancient counting tool with beads, used for calculations.
Down
  1. 1. – Vedic text containing rituals and hymns for sacrifices.
  2. 2. – Number system widely used today, developed in India and spread through Arab mathematicians.
  3. 3. – Sanskrit term meaning “thousand.”
  4. 4. – Number system developed by an ancient Central American civilization, famous for using zero.
  5. 7. – Number system that used base 60, developed in an ancient Mesopotamian civilization.
  6. 9. – Indian mathematician who gave rules for using zero and negative numbers.
  7. 10. – Sanskrit term for “hundred.”
  8. 12. – Name of an ancient manuscript discovered in present-day Pakistan, famous for its use of zero.
  9. 13. – Digit that represents nothing, but has immense mathematical importance.
  10. 15. – System of numbers based on powers of ten.
  11. 16. – Simple method of counting using vertical lines.
  12. 19. – Sanskrit term for “ten.”