计算下面各题，能用简便方法的要用简便方法计算．
1.25×32×2.5             7.54﹣0.9×6﹣2.36            10.1×3.4
8÷0.9÷4.1               7.28+27.2÷4                  3.6×5.2+4.8×3.6．