题目内容
计算:
(1)
+
-4
+2(
-1)0;
(2)
×
+
.
(1)
| 50 |
| 8 |
|
| 2 |
(2)
| 3 |
| 27 |
| ||||||||
(
|
(1)原式=5
+2
-2
+2
=5
+2;
(2)原式=
×3
+
=9+
.
| 2 |
| 2 |
| 2 |
=5
| 2 |
(2)原式=
| 3 |
| 3 |
2
| ||
| 5-3 |
=9+
| 3 |
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题目内容
| 50 |
| 8 |
|
| 2 |
| 3 |
| 27 |
| ||||||||
(
|
| 2 |
| 2 |
| 2 |
| 2 |
| 3 |
| 3 |
2
| ||
| 5-3 |
| 3 |