用简便方法计算:(5⼀6-5⼀9)×18⼀5 = = = =

2025-02-27 13:21:20
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回答1:

用简便方法计算:(5/6-5/9)×18/5
(5/6-5/9)×18/5 = 5/6×18/5-5/9×18/5
=3-2=1