12.( )乘( )( ).6等于4.4( )( )

发布时间:2021-03-16 10:36:29

12.( )乘( )( ).6等于4.4( )( )

网友回答

4.4+4.4x12+13x5.6
=4.4x(1+12)+5.6x13
=4.4x13+5.6x13
=(4.4+5.6)x13
=10x13
=130
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