MATHLETICS Round 2 : CROSSWORD

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Across
  1. 5. Father of Geometry
  2. 6. Negative times a negative is
  3. 10. Queen of Arithmetic
  4. 11. To turn a figure
  5. 14. I am an even number. If you take away one letter from me, I become odd. What number am I?
  6. 15. What has a head and tail but no body
Down
  1. 1. What has keys but can't open locks.
  2. 2. Opposite of Multiplication
  3. 3. An instrument used to measure angles.
  4. 4. Favourite dessert of Math
  5. 7. Which number keeps going up but never reduces.
  6. 8. A part, number or quantity that is left over
  7. 9. What number you will get when you multiply all the numbers on a telephon's number pad.
  8. 12. If 1+9+8=1 then what can be 2+8+9
  9. 13. The shape that has no angle but is not a circle.