题目内容
计算:①
-
+
-
②
+
-
×
+(π+1)0
| 12 |
| 20 |
| 5 |
| 27 |
②
| (-2)2 |
| ||
|
|
| 6 |
(1)原式=2
-2
+
-3
=-
-
.
(2)原式=2+
-
+1=3.
| 3 |
| 5 |
| 5 |
| 3 |
| 3 |
| 5 |
(2)原式=2+
| 2 |
| 2 |
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题目内容
| 12 |
| 20 |
| 5 |
| 27 |
| (-2)2 |
| ||
|
|
| 6 |
| 3 |
| 5 |
| 5 |
| 3 |
| 3 |
| 5 |
| 2 |
| 2 |