Math Extra Credit Crossword

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Across
  1. 4. boundary
  2. 6. measurement of surface
  3. 9. principal times rate times time
  4. 12. egg shape
  5. 13. answer to divison
  6. 14. 4 sides, shiny gem
  7. 17. intersecting lines
  8. 18. 4 sides, two equal
  9. 19. 5 sides
  10. 21. 0 sides, round
Down
  1. 1. little number
  2. 2. top of fraction
  3. 3. placeholder for any value
  4. 4. answer to multiplication
  5. 5. 4 right angles
  6. 7. multiplied by itself
  7. 8. bottom of fraction
  8. 10. written as "fraction," "to," ":"
  9. 11. 3-D can
  10. 15. 8 sides
  11. 16. 6 sides
  12. 17. never intersecting
  13. 20. 3 sides