Ответ:

  1. 20 × 2 : 4 + 18 = 40 : 4 + 18 = 10 + 18 = 28.

  2. 8 + 36 : 3 × 6 = 8 + 12 × 6 = 8 + 72 = 80.

  3. 20 : 2 × 5 + 4 = 10 × 5 + 4 = 50 + 4 = 54.

  4. 56 : 8 + 5 × 5 = 7 + 25 = 32.

  5. 5 × 11 + 64 : 8 = 55 + 8 = 63.

  6. 22 + 49 : 7 × 10 = 22 + 7 × 10 = 22 + 70 = 92.

Ответ: 28; 80; 54; 32; 63; 92.