0.648⼀[(0.4+0.5)*0.6] 简便

2025-03-13 13:29:05
推荐回答(1个)
回答1:

0.648/[(0.4+0.5)*0.6]
=0.648/(0.9*0.6)
=0.648/0.9*0.6
=0.72*0.6
=0.432