Crosswords using math terms

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Across
  1. 3. 2D shapes that do not have any corners
  2. 6. name of a famous mathematician
  3. 11. closure property does not hold for this
  4. 12. when two objects have the same shape and size
  5. 13. parts of a whole
  6. 15. way of comparison quantities
  7. 16. repetitive addition
Down
  1. 1. fraction with base 10 and powers of 10
  2. 2. the opposite of subtraction
  3. 4. it is seen in nature rangoli designs
  4. 5. deals with data
  5. 7. repetitive of this will help us to divide
  6. 8. numerator of a fraction with denominator 100
  7. 9. comparison between ratios
  8. 10. temperature we measure it by using a thermometer
  9. 14. three-sided figure