题目内容
42005×0.252006=________.
0.25
分析:先把0.252006化为0.252005×0.25,然后再计算就简单了.
解答:42005×0.252006,
=42005×0.252005×0.25,
=(4×0.25)2005×0.25,
=0.25.
故答案为:0.25.
点评:本题考查了同底数幂的乘法,熟练掌握运算性质和法则是解题的关键.
分析:先把0.252006化为0.252005×0.25,然后再计算就简单了.
解答:42005×0.252006,
=42005×0.252005×0.25,
=(4×0.25)2005×0.25,
=0.25.
故答案为:0.25.
点评:本题考查了同底数幂的乘法,熟练掌握运算性质和法则是解题的关键.
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