Math End of Year Puzzle

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Across
  1. 2. the space within a 2D figure
  2. 3. another word for average
  3. 6. another word for opposite
  4. 10. a __________ angle measures 90 degrees
  5. 11. A ________ is left of zero on a number line
  6. 13. part/whole
  7. 14. the space within a 3D figure
  8. 18. the number in the middle of an ordered number set
  9. 19. the number that appears most in a data set
  10. 20. A _______ angle is an angle that forms a straight line. It measures 180 degrees.
  11. 21. the length around
Down
  1. 1. the number that tells how likely it is for an event to occur
  2. 4. when dividing fractions you have to multiply by the ________
  3. 5. line that passes through a circle and cuts it in half
  4. 7. a letter that represents a number.
  5. 8. the point (0,0) on a coordinate plane
  6. 9. the distance around the circle.
  7. 12. subtract the lowest number from the highest in a data set
  8. 15. When you put money into an account
  9. 16. When you take money out of an account
  10. 17. whole numbers that include negatives