题目内容
计算:
(1)
-
+
;(2)
-
÷2+(3-
)(1-
)
(1)
| 18 |
| 1 |
| 2 |
| 12 |
| 2 | ||
|
| 48 |
| 32 |
| 3 |
| 1 | ||
|
(1)原式=3
-
+
+1=3
+1;
(2)原式=4
-2
+4-2
=2
-2
+4.
| 2 |
| 3 |
| 3 |
| 2 |
(2)原式=4
| 3 |
| 2 |
| 3 |
| 3 |
| 2 |
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题目内容
| 18 |
| 1 |
| 2 |
| 12 |
| 2 | ||
|
| 48 |
| 32 |
| 3 |
| 1 | ||
|
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 2 |