题目内容
计算:
(1)
+
(
-
)+
;
(2)
-(
)-1+
(
-1)-20080-|
-2|.
(1)
| 2 | ||
|
| 3 |
| 3 |
| 6 |
| 8 |
(2)
| 12 |
| ||
| 3 |
| 3 |
| 3 |
| 3 |
(1)原式=
+3-3
+2
=3;
(2)原式=2
-
+3-
-1+
-2
=
.
| 2 |
| 2 |
| 2 |
=3;
(2)原式=2
| 3 |
| 3 |
| 3 |
| 3 |
=
| 3 |
练习册系列答案
相关题目
题目内容
| 2 | ||
|
| 3 |
| 3 |
| 6 |
| 8 |
| 12 |
| ||
| 3 |
| 3 |
| 3 |
| 3 |
| 2 |
| 2 |
| 2 |
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |