Ответ:

  1. −55 + (−35) = −90.
  2. 100 − 150 = −50.
  3. 3 − (−6) = 3 + 6 = 9.
  4. −8 + (−3) = −11.
  5. 16 − (−8) = 16 + 8 = 24.
  6. 35 − 40 = −5.
  7. 92 − (−34) = 92 + 34 = 126.
  8. −63 + (−42) = −105.