9+9x9= ( )+( )x9=900000 18+98x9= ( )+( )x9=9000000 117+987x9= ( )+( )x9=90000000

问题描述:

9+9x9= ( )+( )x9=900000 18+98x9= ( )+( )x9=9000000 117+987x9= ( )+( )x9=90000000
找规律

9+9x9=90
18+98x9=900
117+987x9= 9000
1116+9876x9= 90000
(11115)+(98765)x9=900000
(111114)+(987654)x9=9000000
(1111113)+(9876543)x9=90000000