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123456789101112
Across
  1. 6. 57+51
  2. 8. 15+12
  3. 9. 123-42
  4. 10. 50+57-15
  5. 12. 40+37-3
Down
  1. 1. 100-47
  2. 2. 35+48-4
  3. 3. 100-55
  4. 4. 55+49+13
  5. 5. 35+42-17
  6. 7. 19+17=36
  7. 11. 27+15-2