简便计算75×24+25×23
第1个回答 2016-12-07
75*24+25*3
=(25*3)*24+25*3
=25*72+25*3
=25*75
=25*(100-25)
=2500-625
=1875本回答被网友采纳
=(25*3)*24+25*3
=25*72+25*3
=25*75
=25*(100-25)
=2500-625
=1875本回答被网友采纳
第2个回答 2016-12-07
75*24+25*23
=75*24+25*(24-1)
=(75+25)*24-25*1
=2400-25
=2375
=75*24+25*(24-1)
=(75+25)*24-25*1
=2400-25
=2375
第3个回答 2016-12-07
75*24+25*23
=75+75*23+25*23
=75+23*(75+25)
=75+2300
=2375
=75+75*23+25*23
=75+23*(75+25)
=75+2300
=2375