题目内容
(1)计算:(
-2)-1+(
)-1-|-
|+(
-2)0;
(2)计算:
+4
+
-|-3
|.
| 3 |
| 1 |
| 3 |
| 12 |
| 5 |
(2)计算:
| 18 |
|
| 2 | ||
|
| 2 |
(1)原式=
+3-2
+1=-
-2+3-2
+1=-3
+2;
(2)原式=3
+2
+2(
+1)-3
=4
+2.
| 1 | ||
|
| 3 |
| 3 |
| 3 |
| 2 |
(2)原式=3
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
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