Integer Operations Crossword Puzzle

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123456789101112
Across
  1. 2. 7+(-4)
  2. 5. (-5)+2
  3. 6. 84÷6
  4. 7. 2-4
  5. 8. 7+(-8)
  6. 10. (-2)-(-2)
  7. 11. -108÷-12
  8. 12. (-3)-(-8)
Down
  1. 1. -7•-9
  2. 3. 9•-9
  3. 4. 28÷7
  4. 5. (-6)+(-4)
  5. 8. 6-7
  6. 9. 5•-9•-2