First Day of School Crossword

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Across
  1. 3. a mathematical sentence using an equals sign
  2. 4. an angle greater than 90 degrees but less than 180
  3. 8. the space inside a shape
  4. 9. your math teachers last name
  5. 10. opposite operations in math
  6. 11. the location where a graph crosses either the x or y-axis
  7. 15. a mathematical comparison using , or =
  8. 17. the middle value in a set of data
  9. 18. rise over run
Down
  1. 1. what month is it right now
  2. 2. a straight path that continues forever in both directions
  3. 5. a figure with four equal sides and four right angles
  4. 6. a letter representing an unknown amount
  5. 7. raising a number to a power
  6. 12. the DPHS mascot
  7. 13. the average of a set of numbers
  8. 14. the answer to an addition problem
  9. 16. where DPHS is located