27÷60=9.99÷2.7=0.98÷3.5=199.8÷0.54=需要验算
答案:1 悬赏:50 手机版
解决时间 2021-11-29 07:21
- 提问者网友:爱了却不能说
- 2021-11-29 02:09
27÷60=9.99÷2.7=0.98÷3.5=199.8÷0.54=需要验算
最佳答案
- 五星知识达人网友:一叶十三刺
- 2021-11-29 03:44
简便运算:
27×46÷79÷46×79÷27
=27*46/(79*46)*79/27
=27/79*79/27
=1
×-×
=*+19976*(+10001)
=19976*10001
=
=
=-
1994﹢199.4﹢19.94﹢1.994
=1.994*(1000+100+10+1)
=1.994*1111
=2215.334
9.1﹢9.2﹢9.3﹢9.4﹢……﹢10.7﹢10.8﹢10.9
=(9.1+10.9)*19/2
=20*19/2
=190
89﹢899﹢8999﹢89999﹢
=80+800+8000+80000++9+99+999+9999+99999
=+-5
=-5
=
27×46÷79÷46×79÷27
=27*46/(79*46)*79/27
=27/79*79/27
=1
×-×
=*+19976*(+10001)
=19976*10001
=
=
=-
1994﹢199.4﹢19.94﹢1.994
=1.994*(1000+100+10+1)
=1.994*1111
=2215.334
9.1﹢9.2﹢9.3﹢9.4﹢……﹢10.7﹢10.8﹢10.9
=(9.1+10.9)*19/2
=20*19/2
=190
89﹢899﹢8999﹢89999﹢
=80+800+8000+80000++9+99+999+9999+99999
=+-5
=-5
=
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