在正方形毛巾四周绣花,四个顶点各绣一朵,这样每边都有5朵.毛巾四周一共有 朵花.
( )-258=159 256+( )=589
( )+356=912 128-( )=11
( )+125=352 408-( )=205
( )+351=652 125-( )=22
( )+325=561 641-( )=365 ( )-158=369 356+( )=515