简便计算:29×25×4=
0.32×0.2=
5×0.05=
0.39÷0.03=
1.9+2.4+7.6=
72÷0.9=
2.5×0.4÷2.5=
3.6÷2=
3.2÷4=
9.5-7.65=
32.1×0.3=