=5.8-0.38÷7.6=5.8-0.05=5.75
5.8-1.9*0.2÷7.6=5.8-0.38÷7.6=5.8-0.05=5.75
=5.8-0.38+7.6=5.42+7.6=13.02
5.8-0.38+7.6=12.02