Tính 1. \(25 + 5 \cdot (-6)\) 2. \(11.62 + (-12).11 + 50.11\) 3. \((-3)^{-2} + 27 + (-3)^{-2}\) 4. \(-47.69 + 31 \cdot (-47)\) 5. \(-17 - (-37).4\)

Tính
1. \(25 + 5 \cdot (-6)\)
2. \(11.62 + (-12).11 + 50.11\)
3. \((-3)^{-2} + 27 + (-3)^{-2}\)
4. \(-47.69 + 31 \cdot (-47)\)
5. \(-17 - (-37).4\)
6. \(5 - \frac{2}{6}\)
7. \(-\frac{34}{7} + 2 - \frac{3}{3}\)
8. \(-7 + (1 + \frac{1}{3})\)
9. \(\frac{2}{5} - \frac{1}{3} + \frac{15}{6}\)
10. \(5 + \frac{-5 + (-20)}{13} + \frac{8 - 21}{41}\)
11. \(\frac{3 - 1}{7} + \frac{5}{25} + \frac{20}{16}\)
12. \(\frac{4}{5} - 1 + \frac{5}{5}\)
13. \(7 - 15 + 21\)
14. \( -15 + 21\)
15. \(-3 - \frac{1}{7} - 3 + \frac{3}{5}\)
16. \(\frac{5 - 15 - 17}{7}\)
17. \(9.6 - 9.3 + 17.6 - 17.2\)
18. \(\frac{18}{7} + \frac{17}{7}\)
19. \(-2 - 5 + 6 + 60\)
20. \(\frac{-5}{7} + \frac{-2}{11} - 35\)