Ответ:
\(300 - (90 + 70) + (86 - 46) = 300 - 160 + 40 = 180\).
\(90 : (10 \cdot 9) : (9 : 9) = 90 : 90 : 1 = 1\).
\(0 \cdot 8 + 7 = 0 + 7 = 7\).
\(0 \cdot (8 + 7) = 0 \cdot 15 = 0\).
Ответ: 180; 1; 7; 0.
\(300 - (90 + 70) + (86 - 46) = 300 - 160 + 40 = 180\).
\(90 : (10 \cdot 9) : (9 : 9) = 90 : 90 : 1 = 1\).
\(0 \cdot 8 + 7 = 0 + 7 = 7\).
\(0 \cdot (8 + 7) = 0 \cdot 15 = 0\).
Ответ: 180; 1; 7; 0.