1.25÷（0.25x4）=1.25
1.25÷0.25×4=1.25×4÷0.25=5×4=20
原式等于1.25÷0.25×4=5×4=20~回答完毕~~\(^o^)/~祝学习进步~~~
1.25*4/0.25=1.25*4*4=1.25*8*2=10*2=20
