直接写出得数:
| 0.77+1.33= | 20×70%= | (0.18+9)÷9= |
| 1.87+5.3= | 12.6-1.7= | 200×(1-40%)= |
| 45÷90%= |
计算下面各题,能简算的必须简算.
| 3.5×6.2+3.8×3.5 | 6.25÷1.25÷0.8. |
用竖式计算.(得数保留一位小数)
| 4.8×0.15= | 79×0.23= | 13.8÷15= | 18÷2.1≈ |
| 0.77+1.33= | 20×70%= | (0.18+9)÷9= |
| 1.87+5.3= | 12.6-1.7= | 200×(1-40%)= |
| 45÷90%= |
| 3.5×6.2+3.8×3.5 | 6.25÷1.25÷0.8. |
| 4.8×0.15= | 79×0.23= | 13.8÷15= | 18÷2.1≈ |