小数加法结合律简便计算的10个例子如下：

1. 2.57 + 4.06 + 7.43 = 2.57 + 7.43 + 4.06 = 10 + 4.06 = 14.06

2. 13.78 + 2.96 + 0.22 = 13.78 + 0.22 + 2.96 = 14 + 2.96 = 16.96

3. 0.69 + 9.36 + 5.31 = 0.69 + 5.31 + 9.36 = 6 + 9.36 = 15.36

4. 6.41 + 3.28 + 3.59 = 6.41 + 3.59 + 3.28 = 10 + 3.28 = 13.28

5. 21.38 + 15.72 + 8.62 = 21.38 + 8.62 + 15.72 = 30 + 15.72 = 45.72

6. 7.60 + 3.05 + 2.40 = 7.60 + 2.40 + 3.05 = 10 + 3.05 = 13.05

7. 0.256 + 1.309 + 0.744 = 0.256 + 0.744 + 1.309 = 1 + 1.309 = 2.309

8. 3.2 + 4.7 + 1.8 = 3.2 + 1.8 + 4.7 = 5 + 4.7 = 9.7

9. 100.8 + 56.8 + 4.2 = 100.8 + 4.2 + 56.8 = 105 + 56.8 = 161.8

10. 92.5 + 3.6 + 7.5 = 92.5 + 7.5 + 3.6 = 100 + 3.6 = 103.6

通过这些例子，我们可以看到小数加法结合律的应用可以简化计算过程，使计算更加快捷和准确。