两名油漆工人刷一个较小的长方体箱子用了3管油漆？
（0.4*0.6+1.5*0.4）*2*0.25。=（0.24+0.6）*2*0.25。=0.64*2*0.25。=1.28*0.25。=0.32
最新回答
1、（0.4*0.6+1.5*0.4）*2*0.25
=（0.24+0.6）*2*0.25
=0.64*2*0.25
=1.28*0.25
=0.32
相关问题
两名油漆工人刷一个较小的长方体箱子用了3管油漆
- （0.4*0.6+1.5*0.4）*2*0.25
=（0.24+0.6）*2*0.25
=0.64*2*0.25
=1.28*0.25
=0.32