Ответ:

  1. \(56\,856:552=103\);
    \(10\,648-872=9\,776\);
    \(9\,776:47=208\);
    \(208-154=54\);
    \(103-54=49\).
  2. \(822\cdot106=87\,132\);
    \(3\,047+83\,468=86\,515\);
    \(87\,132-86\,515=617\);
    \(313\,436:617=508\);
    \(10\,897+508=11\,405\).

Ответ: 1) 49; 2) 11 405.