下面各题怎样简便就怎样算
÷(-) | (1-×)÷ | ×+÷7 | (+)×. |
口算我最行.
0.25×2= | 89.3×0.6= | 5÷0.25= | 6.5×6.7+3.5×6.7= |
9.6÷32= | 65÷1.3= | 0.28÷4= | 50×7.89×0.2= |
1÷4= | 28÷0.02= | 28÷0.5= | 0.4×3.2×2.5= |
÷(-) | (1-×)÷ | ×+÷7 | (+)×. |
0.25×2= | 89.3×0.6= | 5÷0.25= | 6.5×6.7+3.5×6.7= |
9.6÷32= | 65÷1.3= | 0.28÷4= | 50×7.89×0.2= |
1÷4= | 28÷0.02= | 28÷0.5= | 0.4×3.2×2.5= |