2.014×2.0152015-2.015×2.0142014怎么简算
答案:1 悬赏:30 手机版
解决时间 2021-04-04 02:03
- 提问者网友：咪咪
- 2021-04-03 07:24
2.014×2.0152015-2.015×2.0142014怎么简算
最佳答案
- 五星知识达人网友：山河有幸埋战骨
- 2021-04-03 07:41
2.014×2.0152015-2.015×2.0142014
=2.014×(2.015+0.0002015)-2.015×(2.014+0.0002014)
=2.014×0.0002015-2.015x0.0002014
=2.014×(0.0002014+0.0000001)-(2.014+0.001)x0.0002014
=2.014×0.0000001-0.001x0.0002014
=2.014×0.0000001-2.014×0.0000001
=0
=2.014×(2.015+0.0002015)-2.015×(2.014+0.0002014)
=2.014×0.0002015-2.015x0.0002014
=2.014×(0.0002014+0.0000001)-(2.014+0.001)x0.0002014
=2.014×0.0000001-0.001x0.0002014
=2.014×0.0000001-2.014×0.0000001
=0
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