Math Puzzle

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Across
  1. 2. equal to 3 feet
  2. 4. the answer to an addition problem
  3. 5. the largest factor of 8
  4. 7. another word for equivalent
  5. 8. an angle that measures less than 90 degrees
  6. 9. the top of a fraction
  7. 11. a shape with 3 sides
Down
  1. 1. a number that only has two factors, one and itself
  2. 3. a tool used to measure angles
  3. 4. part of a line that has two endpoints
  4. 6. a coin worth 25 cents
  5. 10. the "m" in order of operations (PEMDAS)