题目内容
2×4
-64×(
-
)．
| 1 |
| 2 |
| 1 |
| 16 |
| 1 |
| 128 |
2×4
-64×（
-
），
=2×4+2×
-64×
+64×
，
=9-4+
，
=5
．
| 1 |
| 2 |
| 1 |
| 16 |
| 1 |
| 128 |
=2×4+2×
| 1 |
| 2 |
| 1 |
| 16 |
| 1 |
| 128 |
=9-4+
| 1 |
| 2 |
=5
| 1 |
| 2 |
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