0.6×0.9=
7.8÷0.3=
50×0.02=
8.1÷10=
6.4÷0.08=
2.4a+6a=
0.32=
13.5﹣3.5×2=
0.2×1.40.2 4.2÷0.64.2
1.25÷1000.01×1.25 0.4×0.40.4÷0.4