12.5×0.8=5.1÷0.3=2.4×6=17÷0.17=
3.2÷0.8÷0.4=0.25×4÷0.25×4=1.25×16=7.01-2.58=
0.05÷0.1=6.88÷4=

解：12.5×0.8=105.1÷0.3=172.4×6=14.417÷0.17=100
3.2÷0.8÷0.4=100.25×4÷0.25×4=161.25×16=207.01-2.58=4.43
0.05÷0.1=0.56.88÷4=1.72

分析：按照小數(shù)四則混合運(yùn)算的運(yùn)算順序和計(jì)算法則進(jìn)行計(jì)算．
點(diǎn)評：此題考查學(xué)生的計(jì)算能力，計(jì)算時(shí)要細(xì)心，同時(shí)注意簡算．
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