81.5x15.8+81.5x51.8+67.6x18.5 简便运算
答案:4 悬赏:40 手机版
解决时间 2021-11-17 00:05
- 提问者网友：锁深秋
- 2021-11-16 03:12
81.5x15.8+81.5x51.8+67.6x18.5 简便运算
最佳答案
- 五星知识达人网友：底特律间谍
- 2021-11-16 03:22
81.5×15.8+81.5×51.8+67.6×18.5
=81.5×（15.8+51.8）+67.6×18.5
=81.5×67.6+67.6×18.5
=67.6×（81.5+18.5）
=67.6×100
=6760
=81.5×（15.8+51.8）+67.6×18.5
=81.5×67.6+67.6×18.5
=67.6×（81.5+18.5）
=67.6×100
=6760
全部回答
- 1楼网友：野味小生
- 2021-11-16 06:25
81.5*15.8+81.5*51.8+67.6*18.5
=81.5*(15.8+51.8)+67.6*18.5
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
=81.5*(15.8+51.8)+67.6*18.5
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
- 2楼网友：神的生死簿
- 2021-11-16 05:54
81.5*(15.8+51.8)+67.6*18.5
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
- 3楼网友：青灯有味
- 2021-11-16 04:43
81.5x15.8+81.5x51.8+67.6x18.5
=81.5x15.8+81.5x51.8+67.6x(100-81.5)
=81.5*(15.8+51.8-67.6)+6760
=81.5*0+6760
=6760
或：
81.5x15.8+81.5x51.8+67.6x18.5
=81.5*(15.8+51.8)+67.6*18.5
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
=81.5x15.8+81.5x51.8+67.6x(100-81.5)
=81.5*(15.8+51.8-67.6)+6760
=81.5*0+6760
=6760
或：
81.5x15.8+81.5x51.8+67.6x18.5
=81.5*(15.8+51.8)+67.6*18.5
=81.5*67.6+67.6*18.5
=67.6*(81.5+18.5)
=67.6*100
=6760
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