Re: [無言] 30÷2(2+3)÷5
※ [本文轉錄自 StupidClown 看板 #1DfHLm3e ]
作者: df753 (俺是人) 看板: StupidClown
標題: Re: [無言] 30÷2(2+3)÷5
時間: Wed Apr 13 11:15:55 2011
卡西歐 FX-95MS
一、30/2(2+3)/5=0.6
二、30/2*(2+3)/5=15
第一題解：
30 1
--------*----- = 0.6 原題型30/{2*(2+3)}/5=0.6
2(2+3) 5
第二題解：
30 1
----- *5 *--- = 15 原題型30/2*(2+3)/5=15
2 5
已台灣約定成俗來說括號與常數的乘號可以省略，且此題無中括號
所以 2*(2+3) =\= {2*(2+3)}
故答案為15
不用在爭論啦！
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