math crossword

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Across
  1. 3. has all the quartiles
  2. 6. a line that goes straight up
  3. 9. least common factor
  4. 11. 1+2=3
  5. 13. what is 1/4
  6. 14. best guess
  7. 16. below 0
  8. 17. outside length of shape
  9. 20. most often
Down
  1. 1. a line that goes over
  2. 2. above 0
  3. 4. an angle that is under 90 degrees
  4. 5. 1 apple and 2 oranges is 1:2
  5. 7. inside length of shape
  6. 8. an angle that is higher than 90 degrees
  7. 10. average of all numbers
  8. 12. the amount of space in a certain 3D object.
  9. 15. what you have left in division
  10. 18. distance between Q1 and Q2
  11. 19. greatest common factor