Question

5-0.9×0.2+1.8÷0.5 用简便方法计算，，谢各位了

Answer 1

5-0.9*0.2+1.8/0.5
=5-0.18+3.6
=8.6-0.18
=8.44

Answer 2

“谨记伱的容颜”您好，很高兴为您解答！
5-0.9×0.2+1.8÷0.5
=5-0.18+1.8÷0.5
=5-0.18+3.6
=8.6-0.18
=8.42
对不起，这道题没有简便算法