捡落叶的人
幼苗
共回答了20个问题采纳率:80% 举报
0.111×5.5+0.555×0.9
=0.111×5.5+0.111×4.5
=0.111×(5.5+4.5)
=0.111×10
=1.11
37.5×7.1+500×0.29+1.1×12.5
=37.5×7.1+50×2.9+1.1×12.5
=37.5×7.1+37.5×2.9+12.5×2.9+12.5×1.1
=37.5×(7.1+2.9)+12.5×(2.9+1.1)
=37.5×10+12.5×4
=375+50
=425
1年前
追问
2
在展望
举报
3.75×7.2+63.5×0.72-0.01×72 简便计算