(2.5+0.125)乘以0.8用简便方法计算。

2025-02-24 04:18:08
推荐回答(2个)
回答1:

解:(2.5+0.128)×0.8
=2.5×0.8+0.125×0.8
=2+0.1
=2.1

回答2:

9十q二K