题目内容
(2
-
×2
)÷[(3
+4.375)÷19
]．
| 5 |
| 8 |
| 2 |
| 3 |
| 5 |
| 14 |
| 1 |
| 12 |
| 8 |
| 9 |
（2
-
×2
）÷[（3
+4.375）÷19
]，
=（
-
×
）÷[（
+
）÷
]，
=（
-
）÷[
×
]，
=
÷
，
=
×
，
=2
．
| 5 |
| 8 |
| 2 |
| 3 |
| 5 |
| 14 |
| 1 |
| 12 |
| 8 |
| 9 |
=（
| 21 |
| 8 |
| 2 |
| 3 |
| 33 |
| 14 |
| 37 |
| 12 |
| 35 |
| 8 |
| 179 |
| 9 |
=（
| 21 |
| 8 |
| 11 |
| 7 |
| 179 |
| 24 |
| 9 |
| 179 |
=
| 59 |
| 56 |
| 3 |
| 8 |
=
| 59 |
| 56 |
| 8 |
| 3 |
=2
| 17 |
| 21 |
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