2.5ᘧ࿾0.6阧1.8ᘧ࿾0.5简便运算怎么做?

2025-03-24 13:09:23
推荐回答(1个)
回答1:

2.5×0.6-1.8×0.5
=0.5×5×0.6-1.8×0.5
=0.5×3-1.8×0.5
=0.5×(3-1.8)
=0.5×1.2
=0.6