题目内容
(
-
-
)×(-48)
2 |
3 |
1 |
4 |
3 |
8 |
(
-
-
)×(-48),
=
×(-48)-
×(-48)-
×(-48),
=-32+12+18,
=-32+30,
=-2.
2 |
3 |
1 |
4 |
3 |
8 |
=
2 |
3 |
1 |
4 |
3 |
8 |
=-32+12+18,
=-32+30,
=-2.
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