0.54除以括号3.2减0.5括号乘0.9。简便计算

---

0.54除以括号3.2减0.5括号册前乘洞汪0.9。简便计算
0.54÷（州颤清3.2-0.5）×0.9
=0.54÷2.7×0.9
=0.2×0.9
=0.18

---