1.25乘4.4 怎样简便计算

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1.25乘4.4 怎样简便计算
1.25乘4.4 怎样简便计算

1.25乘4.4 怎样简便计算
1.25*4.4=1.25*(4+0.4)=1.25*4+1.25*0.4=5+0.5=5.5

1.25*4.4
=1.25*4*1.1
=5*1.1
=5.5


1.25*4.4=1.25*4*1.1=5*1.1=5.5

1.25*4.4
=1.25*(4+0.4)
=1.25*4+1.25*0.4
=5+0.5
=5.5

(4+0.4)*1.25=4*1.25+0.4*1.25=5+0.5=5.5

1.25*4.4
=1.25*(4.0.4)
=1.25*4+1.25*0.4
=5+0.5
=5.5

1.25*4.4
=1.25*4+1.25*0.4
=5+0.5
=5.5