Maths

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Across
  1. 6. the length of the outside of a shape
  2. 9. a number minus a number
  3. 10. its over 90 degrees
  4. 12. it is ______ that there will be a better helper than Sera
  5. 13. x+y
  6. 15. a number plus a number
Down
  1. 1. a number times a number
  2. 2. all i want for _______
  3. 3. its 90 degrees
  4. 4. its under 90 degrees
  5. 5. I am ____ that it is raining outside
  6. 7. the ____ of rolling a 6 is 1/6
  7. 8. a number divided by a number
  8. 11. its a party in the ___
  9. 14. i want it that ___