题目内容
计算:
(1)
-
÷
+|1-
|
(2)
-
÷2-1+
-(
-1)0.
(1)
4+
| ||
|
| 500 |
| 5 | ||
|
| 2 |
(2)
| 18 |
| 1 |
| 2 |
| 1 | ||
|
| 2 |
(1)原式=2
+1-10
×
+
-1=2
+1-10+
-1=3
-10;
(2)原式=3
-
÷
+
-1-1
=3
-1+
-1-1
=4
-3.
| 2 |
| 5 |
| ||
| 5 |
| 2 |
| 2 |
| 2 |
| 2 |
(2)原式=3
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 2 |
=3
| 2 |
| 2 |
=4
| 2 |
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