共30题用时5分钟
8.4÷2.1=
3.2÷0.4=
7×0.09=
8.5÷0.5=
0.9÷0.45=
2.5×0.04=
1.5×3=
1.8×5=
4.5÷0.3=
3.4×0.6=
0.7×1=
9.6÷1.6=
3.6÷2=
0.1÷0.125=
11.2÷0.2=
6.28÷3.14=
4.2÷21=
1.25÷2.5=
8.1÷0.3=
7.2×0.01=
1.2÷0.3=
7.2÷0.09=
0.5×0.2=
6.25×8=
0.75×4=
2.4×0.5=
0.36÷12=
22×0.02=