0.888x0.8+0.111x3.6怎样巧算？

0.888x0.8+0.111x3.6=0.111x6.4+0.111x3.6=0.111x(6.4+3.6)=1.11

匿名回答于2024-05-21 19:44:04

=0.111×8×0.8+0.111×3.6=0.111×6.4+0.111×3.6=0.111×（6.4+3.6）=0.111×10=1.11

匿名回答于2024-04-15 05:20:30