计算下面各题(能简便的用简便方法计算).
10.15﹣10.75×0.4﹣5.7
5.8×(3.87﹣0.13)+4.2×3.74
32.52﹣(6+9.728)÷3.2×2.5
[(7.1﹣5.6)×0.9﹣1.15]÷2.5
5.4÷[2.6×(3.7﹣2.9)+0.62]
[20﹣(90.75÷6.6+2.25)]×11.6.
计算下面各题(能简便的用简便方法计算).
10.15﹣10.75×0.4﹣5.7
5.8×(3.87﹣0.13)+4.2×3.74
32.52﹣(6+9.728)÷3.2×2.5
[(7.1﹣5.6)×0.9﹣1.15]÷2.5
5.4÷[2.6×(3.7﹣2.9)+0.62]
[20﹣(90.75÷6.6+2.25)]×11.6.