2) \( 56 : 8 \cdot 6 + 8 = 7 \cdot 6 + 8 = 42 + 8 = 50 \)
\( 100 - 72 : 8 \cdot 1 = 100 - 9 \cdot 1 = 100 - 9 = 91 \)
Ответ: 50; 91.