题目内容
计算:
①
-
-
+
②
+
-(
-1)0.
①
| 12 |
| 18 |
| 0.5 |
|
②
| 2 | ||
|
| 27 |
| 3 |
①原式=2
-3
-
+
=
-
;
②原式=
+1+3
-1
=4
.
| 3 |
| 2 |
| ||
| 2 |
| ||
| 3 |
=
| 7 |
| 3 |
| 3 |
| 7 |
| 2 |
| 2 |
②原式=
| 3 |
| 3 |
=4
| 3 |
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题目内容
| 12 |
| 18 |
| 0.5 |
|
| 2 | ||
|
| 27 |
| 3 |
| 3 |
| 2 |
| ||
| 2 |
| ||
| 3 |
| 7 |
| 3 |
| 3 |
| 7 |
| 2 |
| 2 |
| 3 |
| 3 |
| 3 |