0.5÷0.125×2怎么巧算=0.5x2÷0.125=1÷0.125=8答案
0.5÷0.125×2=0.5×2÷0.125=1÷0.125=8
0.5÷0.125×2= 0.5×2 ÷0.125=10÷0.125=8
