题目内容
(
-
-
+
)×(-48)
| 1 |
| 4 |
| 1 |
| 24 |
| 1 |
| 6 |
| 1 |
| 12 |
(
-
-
+
)×(-48),
=
×(-48)-
×(-48)-
×(-48)+
×(-48),
=-12+2+8-4,
=-16+10,
=-6.
| 1 |
| 4 |
| 1 |
| 24 |
| 1 |
| 6 |
| 1 |
| 12 |
=
| 1 |
| 4 |
| 1 |
| 24 |
| 1 |
| 6 |
| 1 |
| 12 |
=-12+2+8-4,
=-16+10,
=-6.
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