共30题用时5分钟
3.25×0.5=
0.9-0.52=
0.16.5×10=
3.78×100=
0.56×100=
0.8×10=
4÷0.8=
3.215×100=
4.08×100=
3×0.9=
1.1×0.2 =
0.6×0.8 =
2.5×0.4=
12.5×8=
3.6×0.4=
80×0.3 =
1.1×9=
50×0.04=
1.2×0.5=
0.16×5=
9.6÷0.6 =
0.7÷0.01=
1.78+2.2 =
1.6+2.4×0.3=
2.14-0.9=
4.2÷3.5=
6.6÷0.66=
3.9+2.03=
12-3.9=