0.1252007×(-8)2008=   
【答案】分析:乘方的運(yùn)算可以根據(jù)有理數(shù)乘法的結(jié)合律簡(jiǎn)便計(jì)算.
解答:解:0.1252007×(-8)2008
=0.1252007×(-8)2007×(-8)
=[0.125×(-8)]2007×(-8)
=(-1)2007×(-8)
=-1×(-8)
=8.
點(diǎn)評(píng):乘方是乘法的特例,乘方的運(yùn)算可以利用乘法的運(yùn)算來(lái)進(jìn)行.解決此類問(wèn)題要運(yùn)用乘法的結(jié)合律.
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