题目内容
①
-
+
;
②|-
|-
+(
)-1+(-1)2011;
③
+
-(
+1)0.
| 48 |
| 27 |
| 75 |
②|-
| 2 |
| 2 | ||
|
| 1 |
| 2 |
③
| 12 |
| 2 | ||
|
| 3 |
①原式=4
-3
+5
=6
;
②原式=
-
+2-1=1;
③原式=2
+
+1-1=3
.
| 3 |
| 3 |
| 3 |
| 3 |
②原式=
| 2 |
| 2 |
③原式=2
| 3 |
| 3 |
| 3 |
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题目内容
| 48 |
| 27 |
| 75 |
| 2 |
| 2 | ||
|
| 1 |
| 2 |
| 12 |
| 2 | ||
|
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 3 |