25×4=0.4×0.2=8-0.8=0.24÷0.6=數(shù)學(xué)公式=
數(shù)學(xué)公式=數(shù)學(xué)公式=數(shù)學(xué)公式=數(shù)學(xué)公式=560÷16÷5=

解：25×4=100； 0.4×0.2=0.08； 8-0.8=7.2； 0.24÷0.6=0.4； =；
-=； 6÷=8； -=； 1.75-（0.75+）=0.6； 560÷16÷5=7；
分析：①直接寫出結(jié)果；②先算4×2=8，然后在結(jié)果中從后向前數(shù)出兩位，點(diǎn)上小數(shù)點(diǎn)即可；③注意數(shù)位對齊；④把被除數(shù)和除數(shù)分別擴(kuò)大100倍，再相除；⑤分子相乘的積做分子，分母相乘的積做分母；⑥⑧通分計(jì)算；⑦除以一個(gè)數(shù)等于乘這個(gè)數(shù)的倒數(shù)；⑨運(yùn)用減法的性質(zhì)簡算；⑩運(yùn)用除法的性質(zhì)簡算．
點(diǎn)評：此題考查了小數(shù)、分?jǐn)?shù)的四則運(yùn)算，掌握運(yùn)算方法是解題的關(guān)鍵．同時(shí)考查了運(yùn)用運(yùn)算定律進(jìn)行簡算的能力．
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