269×19.9-199×26.8简便算法
答案:6 悬赏:30 手机版
解决时间 2021-12-02 09:30
- 提问者网友：沦陷
- 2021-12-01 13:32
269×19.9-199×26.8简便算法
最佳答案
- 五星知识达人网友：掌灯师
- 2021-12-01 14:35
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全部回答
- 1楼网友：归鹤鸣
- 2021-12-01 18:36
269×19.9-199×26.8
=269×19.9-19.9×268
=（269-268）×19.9
=1x19.9
=19.9
望采纳
=269×19.9-19.9×268
=（269-268）×19.9
=1x19.9
=19.9
望采纳
- 2楼网友：十鸦
- 2021-12-01 16:59
269×19.9-199×26.8
=269×19.9-19.9×10×26.8
=19.9×（269-268）
=19.9
=269×19.9-19.9×10×26.8
=19.9×（269-268）
=19.9
- 3楼网友：千杯敬自由
- 2021-12-01 16:22
269×19.9-199×26.8
=269×19.9-19.9×268
=（269-268）×19.9
=1×19.9
=19.9
=269×19.9-19.9×268
=（269-268）×19.9
=1×19.9
=19.9
- 4楼网友：迟山
- 2021-12-01 15:00
看下图追答
- 5楼网友：夜风逐马
- 2021-12-01 14:41
原式
=269×19.9-19.9×268
=19.9×(269-268)
=19.9
=269×19.9-19.9×268
=19.9×(269-268)
=19.9
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