39x101用简便方法

发布网友

我来回答

共5个回答

热心网友

=39X(100+1)
=39X100+39
=3900+39
=3939

热心网友

=39X(100+1)
=39X100+39
=3900+39
=3939

热心网友

=39X(100+1)
=39X100+39
=3900+39
=3939

热心网友

=39x(100+1)
=39x100+39
=3900+39
=3939

热心网友

=39X(100+1)
=39X100+39
=3900+39
=3939

热心网友

=39x(100+1)
=39x100+39
=3900+39
=3939

热心网友

原式=39×100+39×1
=3900+39=3939

热心网友

=39Ⅹ(100+1)=100Ⅹ39+100X1=3900+100=4000

热心网友

=39x(100+1)
=39x100+39
=3900+39
=3939

热心网友

原式=39×100+39×1
=3900+39=3939

热心网友

原式=39×100+39×1
=3900+39=3939

热心网友

=39x(100+1)
=39x100+39
=3900+39
=3939

热心网友

原式=39×100+39×1
=3900+39=3939

热心网友

=39Ⅹ(100+1)=100Ⅹ39+100X1=3900+100=4000

热心网友

=39Ⅹ(100+1)=100Ⅹ39+100X1=3900+100=4000

热心网友

＝39×100+39×1
＝3900+39
＝3939

热心网友

＝39×100+39×1
＝3900+39
＝3939

热心网友

=39Ⅹ(100+1)=100Ⅹ39+100X1=3900+100=4000

热心网友

＝39×100+39×1
＝3900+39
＝3939

热心网友

＝39×100+39×1
＝3900+39
＝3939