用简便方法计算下面各题．25+914+514=14+37+34+47=1120+49+920-49=67-(47+114)=1118-58+1718-38=6-27-57=916-(34-316)=27+(35+17)-15=-数学
（5）
| 11 |
| 18 |
| 5 |
| 8 |
| 17 |
| 18 |
| 3 |
| 8 |
=（
| 11 |
| 18 |
| 17 |
| 18 |
| 5 |
| 8 |
| 3 |
| 8 |
=1
| 5 |
| 9 |
=
| 5 |
| 9 |
（6）6-
| 2 |
| 7 |
| 5 |
| 7 |
=6-（
| 2 |
| 7 |
| 5 |
| 7 |
=6-1，
=5；
（7）
| 9 |
| 16 |
| 3 |
| 4 |
| 3 |
| 16 |
=
| 9 |
| 16 |
| 3 |
| 4 |
| 3 |
| 16 |
=
| 9 |
| 16 |
| 3 |
| 16 |
| 3 |
| 4 |
=
| 3 |
| 4 |
| 3 |
| 4 |
=0；
（8）
| 2 |
| 7 |
| 3 |
| 5 |
| 1 |
| 7 |
| 1 |
| 5 |
=
| 2 |
| 7 |
