√123456789=11111.1111

11111.1111÷9=1234.56789

1234.56789×8=9876­.5432

9876.5432
+1234.56789=11111.1111

11111.1111-1234.56789=
9­876.54321
9876.54321÷8=1234.56789

1234.56789×9=11111.1111
11111.­1111^2=1234567890
1234567890÷10=123456789