199998÷9=
299997÷9=
399996÷9=
( )÷9=99999
99×99+199=
999×999+1999=
9999×9999+19999=
......
=
9×7=
99×97=
999×997=
9999×9997=
99999×99997=
67×6=
667×66=
6667×666=
882÷9=
8883÷9=
88884÷9=
888885÷9=
888886÷9=
8888887÷9=