题目内容
计算×0.82009得:( )
A.0.8 | B.-0.8 | C.+1 | D.-1 |
A
首先把0.82009分解成0.82008×0.8,然后根据积的乘方的性质的逆用,计算出结果.
解答:解:(-5/4)2008×0.82008×0.8,
=(-5/4×0.8)2008×0.8,
=0.8,
故选A.
解答:解:(-5/4)2008×0.82008×0.8,
=(-5/4×0.8)2008×0.8,
=0.8,
故选A.
练习册系列答案
相关题目