-3-[-5+(1-0.2*5分之3)/(-2)]
=-3-[-5+(1-1/5*3/5)/(-2)]
=-3-[-5+(1-3/25)/(-2)]
=-3-[-5+(22/25)/(-2)]
=-3-[-5+22/25*(-1/2)]
=-3-[-5-11/25]
=-3+5+11/25
=2+11/25
=2又11/25
初一有理数的除法(要列式)
初一有理数的除法(要列式)
-3-[-5+(1-0.2*5分之3)/(-2)]
-3-[-5+(1-0.2*5分之3)/(-2)]
数学人气:340 ℃时间:2020-04-21 08:00:48
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