Ответ:

  1. \(42+51=93\);
  2. \(62+29=91\);
  3. \(96-38=58\);
  4. \(85-57=28\);
  5. \(35\cdot2=70\);
  6. \(12\cdot6=72\);
  7. \(76:4=19\);
  8. \(63:21=3\).