题干
脱式计算（能简算的要简算）．
①
−
÷
②
−
÷
−
| 4 |
| 5 |
| 8 |
| 5 |
| 5 |
| 6 |
| 7 |
| 5 |
| 2 |
| 5 |
| 7 |
| 1 |
| 7 |
③0.8×0.95+0.3×0.8 ④
×[(
−
) ÷
] ．
| 4 |
| 3 |
| 4 |
| 7 |
| 4 |
| 9 |
