计算
125×25×32? 31×55+68×55+55
201×28?????????? 26×199.
网友回答
解:(1)125×25×32?
=125×25×4×8
=(125×8)×(25×4)
=1000×100
=100000;
(2)31×55+68×55+55
=55×(31+68+1)
=55×100
=5500;
(3)201×28?
=(200+1)×28
=200×28+28
=5600+28
=5628;
(4)26×199
=26×(200-1)
=26×200-26
=5200-26
=5174;
故