Number Prefixes

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Across
  1. 2. Three times over again
  2. 4. A large muscle in the upper arm
  3. 6. Become united
  4. 7. Different than others
  5. 9. 1,000,000,000
  6. 10. A punctuation mark (;) indicating a pause
  7. 12. Half a circle
  8. 13. All the matter and space that exists
  9. 14. A game or round before the finals
  10. 16. Twice a month
Down
  1. 1. A vehicle with two wheels
  2. 2. A figure with three straight sides and three angles
  3. 3. A group of three people or things
  4. 5. Holds your camera
  5. 7. A combination of two or more tones sounding at the same time
  6. 8. A state of being joined as whole
  7. 9. A instrument with two lenses used for viewing objects
  8. 11. College
  9. 15. Twice a year
  10. 17. Three children or animals born at the same time