Ответ:

  1. 9 · 3 = 27
  2. 42 + 50 = 92
  3. 33 + 23 = 56
  4. 30 − 17 = 13
  5. 12 : 3 = 4
  6. 8 + 9 = 17
  7. 25 + 40 = 65
  8. 9 · 2 = 18
  9. 21 : 3 = 7
  10. 83 − 37 = 46