0.25*101/3.5
=25*101/350
=5*101/70
=101/14
0.65*99+0.65*2
= 0.65*(99+2)
= 0.65*(100+1)
=65+0.65
=65.65
0.25*101/3.5 0.65*99+0.65*2 巧算
0.25*101/3.5 0.65*99+0.65*2 巧算
请问,0.35*101/3.5怎么巧算,刚才打错了,呵呵,sorry!
请问,0.35*101/3.5怎么巧算,刚才打错了,呵呵,sorry!
数学人气:283 ℃时间:2020-04-24 07:04:42
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