Mathematics

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Across
  1. 1. steepness in graph
  2. 2. take away from a number
  3. 6. Space in an object
  4. 7. average of a number
  5. 10. below 0
  6. 12. over 90 degrees
  7. 13. same
  8. 15. middle number
  9. 17. same length
Down
  1. 1. multiply
  2. 3. smaller than 90 degrees
  3. 4. most common number
  4. 5. 2 lines that form a single line
  5. 7. double a number
  6. 8. opposite of multiplication
  7. 9. add numbers
  8. 11. largest number vs smallest
  9. 14. angle 90 degrees
  10. 16. 0,0 on graph