题目内容
[2-(
-
)×
]÷
+
.
| 1 |
| 4 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 10 |
| 1 |
| 10 |
[2-(
-
)]÷
+
,
=[2-0]÷
+
,
=2÷
+
,
=20+
,
=20
.
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 10 |
| 1 |
| 10 |
=[2-0]÷
| 1 |
| 10 |
| 1 |
| 10 |
=2÷
| 1 |
| 10 |
| 1 |
| 10 |
=20+
| 1 |
| 10 |
=20
| 1 |
| 10 |
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