Частина 1. Номер 560

  56 – 28 + 14 = 42
:7
  8 – 4 + 2 = 6
•8
  64 – 32 + 16 = 48

  49 – 21 + 35 = 63
:7
  7 – 3 + 5 = 9
•8
  56 – 24 + 40 = 72