计算下面各题，能简算的要简算．1112-38+1878-（117-18）5-47-3723+（35-12）1516-（316+14）49+310+59+710．-数学
| 1 |
| 8 |
=
| 7 |
| 8 |
| 1 |
| 8 |
| 1 |
| 17 |
=1-
| 1 |
| 17 |
=
| 16 |
| 17 |
5-
| 4 |
| 7 |
| 3 |
| 7 |
=5-（
| 4 |
| 7 |
| 3 |
| 7 |
=5-1，
=4；
| 2 |
| 3 |
| 3 |
| 5 |
| 1 |
| 2 |
=
| 2 |
| 3 |
| 1 |
| 10 |
=
| 23 |
| 30 |
| 15 |
| 16 |
| 3 |
| 16 |
| 1 |
| 4 |
=
| 15 |
| 16 |
| 3 |
| 16 |
| 1 |
| 4 |
=
| 3 |
| 4 |
| 1 |
| 4 |
=
| 1 |
| 2 |
| 4 |
| 9 |
| 3 |
| 10 |
| 5 |
| 9 |
| 7 |
| 10 |
=（
| 4 |
| 9 |
