3.5×98+35×0.2的简便计算

2025-06-29 11:08:24
推荐回答(2个)
回答1:

35×0.2=3.5×(10×0.2)=3.5×2,呵呵

回答2:

3.5×98+35×0.2
=3.5×(98+2)
=3.5×100
=350