脱式计算，怎样简便就怎样算①(12-14)÷13+16②34÷910-514×715③89×[34-(716-14)]④102×98101⑤45-59+15-49⑥813÷7+17×513．-数学
②
| 3 |
| 4 |
| 9 |
| 10 |
| 5 |
| 14 |
| 7 |
| 15 |
=
| 3 |
| 4 |
| 10 |
| 9 |
| 5 |
| 14 |
| 7 |
| 15 |
=
| 5 |
| 6 |
| 1 |
| 6 |
=
| 2 |
| 3 |
③
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 3 |
| 16 |
=
| 8 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 2 |
④102×
| 98 |
| 101 |
=（101+1）×
| 98 |
| 101 |
=101×
| 98 |
| 101 |
| 98 |
| 101 |
=98+
| 98 |
| 101 |
=98
| 98 |
| 101 |
⑤
| 4 |
| 5 |
| 5 |
| 9 |
| 1 |
| 5 |
