题目内容
计算:
(1)
+
-
(2)-
•
(3)|
-
|+2
(1)
| 3 | 8 |
| 0 |
|
(2)-
| 3 |
| ||
| 16 |
(3)|
| 2 |
| 3 |
| 2 |
(1)
+
-
=2+0-
=1
;
(2)-
•
=-
×4
=-2;
(3)|
-
|+2
=
-
+2
=
+
.
| 3 | 8 |
| 0 |
|
=2+0-
| 1 |
| 2 |
=1
| 1 |
| 2 |
(2)-
| 3 |
| ||
| 16 |
=-
| 1 |
| 2 |
=-2;
(3)|
| 2 |
| 3 |
| 2 |
=
| 3 |
| 2 |
| 2 |
=
| 3 |
| 2 |
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