Ответ:

  1. \(8 \cdot 7 = 56\)
  2. \(8 \cdot 9 = 72\)
  3. \(9 \cdot 5 = 45\)
  4. \(7 \cdot 8 = 56\)
  5. \(6 \cdot 8 = 48\)
  6. \(72 : 8 = 9\)
  7. \(64 : 8 = 8\)
  8. \(54 : 9 = 6\)
  9. \(63 : 9 = 7\)