2.5×0.8÷2.5×0.8的简便方法?

2025-06-27 00:18:47
推荐回答(1个)
回答1:

2.5×0.8÷2.5×0.8
=(2.5÷2.5)×(0.8×0.8)
=1×0.64
=0.64