5.2×0.9+0..9的简便运算
答案:3 悬赏:60 手机版
解决时间 2021-02-24 12:35
- 提问者网友:ミ烙印ゝ
- 2021-02-23 15:44
5.2×0.9+0..9的简便运算
最佳答案
- 五星知识达人网友:傲气稳了全场
- 2021-02-23 16:00
5.2 ×0.9+0.9
=0.9*(5.2+1)
=1*6.2-0.1*6.2
=6.2-0.62
=5.58
=0.9*(5.2+1)
=1*6.2-0.1*6.2
=6.2-0.62
=5.58
全部回答
- 1楼网友:逐風
- 2021-02-23 17:44
=5.58
- 2楼网友:平生事
- 2021-02-23 16:11
5.2×0.9+0.9
=(5.2+1)×0.9
=6.2×0.9
=6.2×(1-0.1)
=6.2×1-6.2×0.1
=5.58
=(5.2+1)×0.9
=6.2×0.9
=6.2×(1-0.1)
=6.2×1-6.2×0.1
=5.58
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