9+9+9 = ( )×( ) = ( )= 3+3+3+3+3+3+3+3+3 = ( )×( ) = ( )
7+7+7 = ( )×( ) = ( )= 3+3+3+3+3+3+3 = ( )×( ) = ( )
2+2+2 = ( )×( ) = ( )= 3+3 = ( )×( ) = ( )
3+3+3+3+3+3 = ( )×( ) = ( )= 6+6+6 = ( )×( ) = ( )
4+4+4 = ( )×( ) = ( )= 3+3+3+3 = ( )×( ) = ( )
9+9+9+9+9 = ( )×( ) = ( )= 5+5+5+5+5+5+5+5+5 = ( )×( ) = ( )
6+6+6+6 = ( )×( ) = ( )= 4+4+4+4+4+4 = ( )×( ) = ( )
3+3+3+3+3+3+3+3+3 = ( )×( ) = ( )= 9+9+9 = ( )×( ) = ( )
6+6+6+6 = ( )×( ) = ( )= 4+4+4+4+4+4 = ( )×( ) = ( )
9+9+9+9+9+9 = ( )×( ) = ( )= 6+6+6+6+6+6+6+6+6 = ( )×( ) = ( )
©2026-02-02 11:36:21 chenyinan.com 陈小龙数学：乘法的意义