求达人帮忙看看,这道题该怎么做,要有过程哦,谢谢

2024-11-16 09:58:22
推荐回答(5个)
回答(1):

3.1×3/8+37.5%×5.9+0.375 =3.1×0.375+0.375×5.9+0.375 ×1 =(3.1+5.9+1)×0.375 =10×0.375 =3.75

回答(2):

 

回答(3):

 

回答(4):

 

回答(5):

3.1×3/8+37.5%×5.9+0.375
=3.1×0.375+0.375×5.9+0.375
=0.375×(3.1+5.9+1)
=0.375×10
=3.75