计算下面各题，能简算的要使用简便方法计算．（1）2319×112-1719÷12（2）87÷87-78+14×0.875（3）325-56÷1011-1312（4）1333÷（2033+1011-13）（5）57×（75+1415）（6）[34÷34+（35÷9-115）]×35-数学
| 17 |
| 19 |
| 1 |
| 12 |
=
| 6 |
| 19 |
| 1 |
| 12 |
=
| 1 |
| 38 |
（2）87÷
| 8 |
| 7 |
| 7 |
| 8 |
=87×
| 7 |
| 8 |
| 7 |
| 8 |
=87×0.875-1×0.875+14×0.875，
=（87-1+14）×0.875，
=100×0.875，
=87.5；
（3）3
| 2 |
| 5 |
| 5 |
| 6 |
| 10 |
| 11 |
| 13 |
| 12 |
=3
| 2 |
| 5 |
| 5 |
| 6 |
| 11 |
| 10 |
| 13 |
| 12 |
=3
| 2 |
| 5 |
| 11 |
| 12 |
| 13 |
| 12 |
=3
| 2 |
| 5 |
| 11 |
| 12 |
| 13 |
| 12 |
=3
| 2 |
| 5 |
=1
| 2 |
| 5 |
（4）
| 13 |
| 33 |
| 20 |
| 33 |
| 10 |
| 11 |
| 1 |
| 3 |
=
| 13 |
| 33 |
