1994*1992/1993怎么用简便运算
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![1994*1992/1993怎么用简便运算](/uploads/image/z/203760-0-0.jpg?t=1994%2A1992%2F1993%E6%80%8E%E4%B9%88%E7%94%A8%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
1994*1992/1993怎么用简便运算
1994*1992/1993怎么用简便运算
1994*1992/1993怎么用简便运算
1994*1992/1993
=(1993+1)(1993-1)/1993
=(1993²-1)/1993
=1993-1/1993
=1992又1992/1993
(1993+1)*1992/1993
=1992+1992/1993
=1992又1992/1993
二锅头让他