( )0( )
问题描述:
( )0( )
* ( )6
——————
( )( )5( )
( )3( )
——————
( )6( )( )
答
(2)0(9)
* (4)6
——————
(1)(2)5(4)
(8)3(6)
____________
(9)6(1)(4)