题目内容
化简并计算:
(1)
+
-
-
(2)
-(
-
)(精确到0.01)
(1)
| 27 |
| 2 |
| 8 |
| 12 |
(2)
|
| 1 |
| 6 |
| 24 |
| 3 |
| 2 |
| 12 |
(1)原式=3
+
-2
-2
=
-
;
(2)原式=
-
×2
+
×2
=3
≈5.20.
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 2 |
(2)原式=
| ||
| 3 |
| 1 |
| 6 |
| 6 |
| 3 |
| 2 |
| 3 |
| 3 |
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