40/29×18-11×18/29+92
=18/29×40-11×18/29+92
=18/29×(40-11)+92
=18/29×29+92
=18+92
=110
101×99×999+999
=(101×99+1)×999
=[(100+1)×99+1]×999
=(100×99+1×99+1)×999
=(9900+99+1)×999
=10000×999
=9990000
40/29×18-11×18/29+92
=18/29×40-11×18/29+92
=18/29×(40-11)+92
=18/29×29+92
=18+92
=110
101×99×999+999
=(101×99+1)×999
=[(100+1)×99+1]×999
=(100×99+1×99+1)×999
=(9900+99+1)×999
=10000×999
=9990000