原式等于8.82÷0.4-2.05=22.05-2.05=20~回答完毕~~结果仅供参考~~\(^o^)/~祝学习进步~~~
供参考
=6.3÷0.4-2.05=15.75-2.05=13.7
=8.82÷0.4-2.05=22.05-2.05=20
