题目内容
计算(-
-
+
)÷
| 3 |
| 4 |
| 5 |
| 9 |
| 7 |
| 12 |
| 1 |
| 36 |
(-
-
+
)÷
,
=(-
-
+
)×36,
=-
×36-
×36+
×36,
=-27-20+21,
=-26.
| 3 |
| 4 |
| 5 |
| 9 |
| 7 |
| 12 |
| 1 |
| 36 |
=(-
| 3 |
| 4 |
| 5 |
| 9 |
| 7 |
| 12 |
=-
| 3 |
| 4 |
| 5 |
| 9 |
| 7 |
| 12 |
=-27-20+21,
=-26.
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