如题所述
5.8*9.9
=5.8*(10-0.1)
=5.8*10-5.8*0.1
=58-0.58
=57.42
=5.8*(10-0.1)
=5.8*10-5.8*0.1
=58-0.58
=57.42
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第1个回答 2012-09-25
5.8*9.9
=5.8*(10-0.1)
=5.8*10-5.8*0.1
=58-0.58
=57.42
呵呵
=5.8*(10-0.1)
=5.8*10-5.8*0.1
=58-0.58
=57.42
呵呵
第2个回答 2010-11-28
5.8(10-0.1)=58-0.58=57.42
第3个回答 2020-09-25
5.8(10-0.1)