题目内容
(3
+3
÷
)×25%．
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 3 |
(3
+3
÷
)×25%，
=（3
+3
÷
）×
，
=（3
+3
×3）×
，
=3
×（1+3）×
，
=3
×4×
，
=3
×（4×
），
=3
×1，
=3
．
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 3 |
=（3
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 4 |
=（3
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 4 |
=3
| 5 |
| 6 |
| 1 |
| 4 |
=3
| 5 |
| 6 |
| 1 |
| 4 |
=3
| 5 |
| 6 |
| 1 |
| 4 |
=3
| 5 |
| 6 |
=3
| 5 |
| 6 |
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