问题
填空题
42005×0.252006=______.
答案
42005×0.252006,
=42005×0.252005×0.25,
=(4×0.25)2005×0.25,
=0.25.
故答案为:0.25.
42005×0.252006=______.
42005×0.252006,
=42005×0.252005×0.25,
=(4×0.25)2005×0.25,
=0.25.
故答案为:0.25.