题目内容
计算:3
-2
+
÷2
+(
)2.
| 13 |
|
| 48 |
| 3 |
|
原式=3
-2×
+4
÷2
+
=3
-
+2+
=3
-
+
.
| 13 |
| ||
| 3 |
| 3 |
| 3 |
| 1 |
| 3 |
=3
| 13 |
2
| ||
| 3 |
| 1 |
| 3 |
=3
| 13 |
2
| ||
| 3 |
| 7 |
| 3 |
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题目内容
| 13 |
|
| 48 |
| 3 |
|
| 13 |
| ||
| 3 |
| 3 |
| 3 |
| 1 |
| 3 |
| 13 |
2
| ||
| 3 |
| 1 |
| 3 |
| 13 |
2
| ||
| 3 |
| 7 |
| 3 |