0.52乘二点五加二点八乘0.25怎么简便。

2025-04-02 05:11:12
推荐回答(1个)
回答1:

0.52×2.5+2.8×0.25
=0.52×2.5+0.28×2.5
=(0.52+0.28)×2.5
=0.8×2.5
=2