题目内容
______+
=______-
=______×
=______÷
．
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
设等号两边的值为1，则填空如下：
+
=
-
=3×
=
÷
．
故答案为：
，
，3，
．
| 2 |
| 3 |
| 1 |
| 3 |
| 4 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
故答案为：
| 2 |
| 3 |
| 4 |
| 3 |
| 1 |
| 3 |
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