Math Crossword :D

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Across
  1. 3. another way to say multiply
  2. 6. 4 _ 5 = 9
  3. 8. we use to solve integers
  4. 11. 5 _ 7 = -2
  5. 12. 3 _ 3 = 1
  6. 13. another way to solve integers
Down
  1. 1. a cool math teacher :D
  2. 2. 2 _ 2 = 4
  3. 4. calculation for right triangles
  4. 5. long side of a right angled triangle
  5. 7. add all the # and divide it by how many #
  6. 9. number that has (2-),(2+)
  7. 10. order of operation clue: ___m__