Math Vocabulary Puzzle

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Across
  1. 3. unit of measurement for angles
  2. 5. another name for 'number model'
  3. 7. tool to draw straight lines
  4. 8. fractions that are equal
  5. 9. tool that measures angles
  6. 10. angle that is 180 degrees
  7. 13. opposite of multiplication
  8. 14. angle more than 90 degrees but less than 180 degrees
Down
  1. 1. angle less than 90 degrees
  2. 2. corner of an angle
  3. 3. bottom number in a fraction
  4. 4. angle that is more than 180 degrees
  5. 6. top number in a fraction
  6. 11. opposite of subtraction
  7. 12. 90 degree angle