math crossword

123456789101112
Across
  1. 2. an important number
  2. 4. done in return
  3. 5. left out
  4. 6. uses letters
  5. 8. the way things go
  6. 12. not reverse
Down
  1. 1. has only numbers
  2. 2. check
  3. 3. notthe same
  4. 7. the type of math you use
  5. 9. equation with no answer
  6. 10. math problem
  7. 11. in place of