2.2÷0.25=(2.2×4)÷(0.25×4)=8.8÷1=8.8
2.2÷0.25=(2.2×4)÷(0.25×4)=8.8÷1=8.8
2.2÷0.25=2.2÷1/4=2.2x4=8.8谢谢,请采纳