(0.1+0.2-0.3)×0.4×0.5=0 (0.1+0.2)÷0.3-0.4-0.5=0.1 (0.1+0.2+0.3)÷0.4-0.5=1 (0.1-0.2-0.3+0.4)×0.5=0
(0.1+0.2)-0.3-0.4+0.5=0.1希望能采纳
0.1+0.2-0.3-0.4+0.5=0.1
0.5-(0.4+0.1+0.2-0.3)=0.1