Ответ:

  1. \(3080+6385=9465\), \(9465-7967=1498\).
  2. \(10000-4657-3886=10000-8543=1457\).
  3. \(302506-128567-0+13585=173939+13585=187524\).
  4. \(6547-6547=0\).
  5. \(137-0-137+0=137-137=0\).
  6. \(9084-7556+386+0=1528+386=1914\).
  7. \(64537-45289-19248-0=64537-64537=0\).
  8. \(53032+0-49769+5007=3263+5007=8270\).