Spelling - Number Prefixes

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Across
  1. 3. includes planets, galaxies and all things
  2. 6. the number one followed by 9 zeros
  3. 7. She receives her magazine ______ which amount to six times a year
  4. 8. People who work together work in ______.
  5. 11. The last four teams to compete will do so in the _______.
  6. 13. three children born at the same time to the same mother
  7. 15. to bring together as one
  8. 18. three angles and three sides
Down
  1. 1. muscles in your arms
  2. 2. twice a year
  3. 4. separates two independent clauses
  4. 5. get a college degree here
  5. 6. something to ride with two wheels
  6. 9. half a circle
  7. 10. device used to see things up close
  8. 12. one of a kind
  9. 14. My mom put the camera on the _____ to keep it steady.
  10. 16. The three flute players formed a ______.
  11. 17. to do at the exact same time
  12. 18. If I bought three scoops of ice cream it would be a ____ cone.