题目内容
计算:3
-2
+
-1
=______.
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 6 |
原式=3
-2
+
-1
=3
-3
=0.
故答案为:0
| 3 |
| 12 |
| 2 |
| 12 |
| 1 |
| 12 |
| 2 |
| 12 |
| 4 |
| 12 |
| 4 |
| 12 |
故答案为:0
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