Ответ:

  1. (52 + 4) = 56, а 59 − 56 = 3.
  2. (37 − 2) = 35, а 35 − 33 = 2.
  3. (99 − 5) = 94, а 94 − 91 = 3.
  4. (76 + 3) = 79, а 79 − 77 = 2.
  5. (64 + 3) = 67, а 68 − 67 = 1.
  6. (51 + 2) = 53, а 55 − 53 = 2.

Ответ: 3; 2; 3; 2; 1; 2.