7.6/5.4/1.9*5.4这道题怎么简便
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7.6/5.4/1.9*5.4这道题怎么简便7.6/5.4/1.9*5.4这道题怎么简便7.6/5.4/1.9*5.4这道题怎么简便7.6/5.4/1.9*5.4=7.6/5.4*5.4/1.9=7.
7.6/5.4/1.9*5.4这道题怎么简便
7.6/5.4/1.9*5.4这道题怎么简便
7.6/5.4/1.9*5.4这道题怎么简便
7.6/5.4/1.9*5.4
=7.6/5.4*5.4/1.9
=7.6/1.9
=4
7.6/5.4/1.9*5.4这道题怎么简便
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