**Решение примеров:**
1. \[3010 - 5614 : 7 + 9042\]
\[3010 - 802 + 9042\]
\[2208 + 9042 = 11250\]
2. \[(40179 - 15395 : 5) \cdot 4\]
\[(40179 - 3079) \cdot 4\]
\[37100 \cdot 4 = 148400\]
3. \[(90 - 42 : 3) \cdot 2\]
\[(90 - 14) \cdot 2\]
\[76 \cdot 2 = 152\]
4. \[15 \cdot (54 : 3 - 4 : 7)\]
\[15 \cdot (18 - 4:7)\]
\(\approx 15 \cdot (18 - 0.571) \approx 15 \cdot 17.429 = 261.435\)