98.6*98.6-98.5*98.7
答案:1 悬赏:10 手机版
解决时间 2021-03-21 17:01
- 提问者网友：我没有何以琛的痴心不悔
- 2021-03-21 08:18
98.6*98.6-98.5*98.7
最佳答案
- 五星知识达人网友：患得患失的劫
- 2021-03-21 09:51
简便计算
98.6*98.6-98.5*98.7
=98.6*98.6-98.5*98.6-98.5*0.1
=98.6*（98.6-98.5）-98.5*0.1
=98.6*0.1-98.5*0.1
=（98.6-98.5）*0.1
=0.1*0.1
=0.01
98.6*98.6-98.5*98.7
=98.6*98.6-98.5*98.6-98.5*0.1
=98.6*（98.6-98.5）-98.5*0.1
=98.6*0.1-98.5*0.1
=（98.6-98.5）*0.1
=0.1*0.1
=0.01
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