25%×+×
4×8×1.25×25%
4÷(75%+50%-1)
=
8.2+0.08=
8.1÷3%=
×0.25=
6-6÷9=
10÷=
1÷-÷1=
×6÷×6=
1.47+5.3=
0×99=
9.9÷11=
0.3×3.6=
1÷0.5=
2.8÷1.4×0.2=
-0.375=
5-=
0.32÷10%=
4.25×3.6+57.5×0.36
×-25%× (1-×)÷ 85×+15×75%
105665500≈万
81122300≈万