8-0.55=
4.08×0.2=
10.07÷1.007=
8.5+4.7=
10÷0.25=
0.5÷0.02=
0.2÷0.4=
4.5÷0.05=
1.85﹣+= 1÷×= +0.375=
2.4﹣= (+)×2.4= 5÷×5÷=
10×45%= 1.25×8= 40×(1﹣20%)=