题目内容
计算
(1)|1-
|+|
-
|+|
-2|
(2)
×
÷
×|-1
|.
(1)|1-
| 2 |
| 2 |
| 3 |
| 3 |
(2)
| 3 | -216 |
(
|
| 0.25 |
| 7 |
| 9 |
(1)原式=
-1+
-
+2-
=1;
(2)原式=-6×
÷0.5×
=-6×
×2×
=-16.
| 2 |
| 3 |
| 2 |
| 3 |
(2)原式=-6×
| 3 |
| 4 |
| 16 |
| 9 |
| 3 |
| 4 |
| 16 |
| 9 |
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