Ответ:

  1. \(7324+5674=12\,998\).
  2. \(3726+5375=9101\).
  3. \(6753+5546=12\,299\).
  4. \(3042-1675=1367\).
  5. \(2103-1576=527\).
  6. \(3200-2534=666\).