Ответ:

  1. \(34:6=5\) (ост. \(4\));
  2. \((300+40+0.4):6=340.4:6=56.733\ldots\) (ост. \(0.4\));
  3. \(44:7=6\) (ост. \(2\));
  4. \(0.4\cdot6=2.4\);
  5. \(344.4:57.4=6\);
  6. \(344:6=57\) (ост. \(2\));
  7. \(44:6=7\) (ост. \(2\)).

Ответ: 5 (ост. 4); 56,733… (ост. 0,4); 6 (ост. 2); 2,4; 6; 57 (ост. 2); 7 (ост. 2).