题目内容
| 1 |
| 8 |
| 1 |
| 13 |
| 8 |
| 21 |
| 29 |
| 4 |
①1÷
=8；
②
÷1=
；
③1-
=
；
④
-1=
．
故答案为：8，
，
，
．
| 1 |
| 8 |
②
| 1 |
| 13 |
| 1 |
| 13 |
③1-
| 8 |
| 21 |
| 13 |
| 21 |
④
| 29 |
| 4 |
| 25 |
| 4 |
故答案为：8，
| 1 |
| 13 |
| 13 |
| 21 |
| 25 |
| 4 |
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题目内容
| 1 |
| 8 |
| 1 |
| 13 |
| 8 |
| 21 |
| 29 |
| 4 |
| 1 |
| 8 |
| 1 |
| 13 |
| 1 |
| 13 |
| 8 |
| 21 |
| 13 |
| 21 |
| 29 |
| 4 |
| 25 |
| 4 |
| 1 |
| 13 |
| 13 |
| 21 |
| 25 |
| 4 |