共30题用时5分钟
0.9×0.3=
5×0.6=
10×0.05=
0.13×7=
0.7×4=
0.05×4=
0.4×50=
12.5×8=
3.25×0=
2.6×3=
2.3×4=
0.45×0.2=
3.5×0.01=
7.5×0.1=
4.1×2=
9×0.5=
0×9.8=
3.9+0.39=
1.25×8=
10-3.52=
2.5×0.4=
1×0.06=
9×0.5=
0.22×4=
0.2×0.4=
8.2+1.8=