（1）0.125×32×25 =（0.125×8）×（4×25） =1×100 =100 （2）23.4÷5.2×3.2 =4.5×3.2 =14.4 （3）5.8+6.3÷9×0.5 =5.8+0.7×0.5 =5.8+0.35 =6.15
