0.125乘999乘0.125怎么简便计算
答案:3 悬赏:40 手机版
解决时间 2021-02-19 23:18
- 提问者网友：雪舞兮
- 2021-02-19 12:49
0.125乘999乘0.125怎么简便计算
最佳答案
- 五星知识达人网友：行路难
- 2021-02-19 13:04
0.125x999x0.125
=0.125x(1000-1)x0.125
=(0.125x1000-0.125)x0.125
=(125-0.125)x0.125
=125x0.125-0.125x0.125
=15.625-0.015625
=15.609375
答题不易，望采纳~~~
=0.125x(1000-1)x0.125
=(0.125x1000-0.125)x0.125
=(125-0.125)x0.125
=125x0.125-0.125x0.125
=15.625-0.015625
=15.609375
答题不易，望采纳~~~
全部回答
- 1楼网友：洎扰庸人
- 2021-02-19 13:37
答：0.125乘999+0.125
=0.125*（999+1）
=0.125*1000
=125
- 2楼网友：爱难随人意
- 2021-02-19 13:13
0.125x999x0.125
=0.125x(1000-1)x0.125
=(0.125x1000-0.125)x0.125
=(125-0.125)x0.125
=125x0.125-0.125x0.125
=15.625-0.015625
=15.609375
答题不易，望采纳~~~
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