(简便运算)9.9x9.81等于多少?
答案:5 悬赏:30 手机版
解决时间 2021-02-04 10:03
- 提问者网友:
- 2021-02-04 00:13
(简便运算)9.9x9.81等于多少?
最佳答案
- 五星知识达人网友:人類模型
- 2021-02-04 01:03
=(10-0.1)x9.81
=98.1-0.981
=97.119
=98.1-0.981
=97.119
全部回答
- 1楼网友:七十二街
- 2021-02-04 04:26
9.9x9.81=9.9x(9.9-0.09)=9.9x9.9-9.9x0.09=(10-0.1)x(10-0.1)-0.891
=100-2+0.01-0.891=98-0.881=97.119
=100-2+0.01-0.891=98-0.881=97.119
- 2楼网友:深街酒徒
- 2021-02-04 03:53
9.9x9.81=(10-0.1)x9.81
=10x9.81-0.1x9.81
=98.1-0.981
=97.119
=10x9.81-0.1x9.81
=98.1-0.981
=97.119
- 3楼网友:慢性怪人
- 2021-02-04 03:00
9.9x9.81
=(10-0.1)*9.81
=98.1-0.981
=97.119
=(10-0.1)*9.81
=98.1-0.981
=97.119
- 4楼网友:愁杀梦里人
- 2021-02-04 02:26
原式=(10-0.1)×9.81
=9.81×10-9.81×0.1
=98.1-0.981
=97.119追问0.981哪里来的?追答9.81×0.1=0.981追问98.1哪里来的?追答10×9.81追问谢谢追答莫客气
=9.81×10-9.81×0.1
=98.1-0.981
=97.119追问0.981哪里来的?追答9.81×0.1=0.981追问98.1哪里来的?追答10×9.81追问谢谢追答莫客气
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