初一2.25×(-2.3)×3⼀25要步骤

2024-12-22 00:02:19
推荐回答(2个)
回答1:

=-2.25*4*2.3*3/(25*4)=9*2.3*3/100=20.7*3/100=62.1/100=0.621

回答2:

=-9/4×23/10×3/25
=-621/1000