1. 11.2 - 15.18 × 9.08 + 19 + 55.86 ÷ 3.8 × 18.9 × 13.9 = ?

2. 19.8 × 104.005 ÷ 15.5 × 68.484 ÷ 5.2 + 3.4 = ?

3. 15.4 - 6.41 × 14.29 = ?

4. 3.8 × 17 × 235.894 ÷ 14.93 × 9.56 × 2 = ?

5. 4.43 × 7.51 - 19.8 = ?

6. 15.7 - 172.815 ÷ 12.3 - 12.1 × 183.6 ÷ 13.6 + 8.72 × 21.714 ÷ 4.62 + 11.62 = ?

7. 9.33 × 13.27 × 4.7 × 19 - 7.8 = ?

8. 20.664 ÷ 3.69 + 19.7 - 13.7 = ?

9. 51.1497 ÷ 3.53 - 11.3 + 16.3 + 19.4 = ?

10. 18.7 × 16.2 - 5.5 - 9.53 × 6.7 + 14 = ?