题目内容
-24×(-
+
-
)
5 |
6 |
3 |
8 |
1 |
12 |
-24×(-
+
-
),
=-
×(-24)+
×(-24)-
×(-24),
=20-9+2,
=22-9,
=13.
5 |
6 |
3 |
8 |
1 |
12 |
=-
5 |
6 |
3 |
8 |
1 |
12 |
=20-9+2,
=22-9,
=13.
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