题目内容
计算:
(1)(-
)2-
+
;
(2)
(1-
)-3
.
(1)(-
| 6 |
| 25 |
| (-3)2 |
(2)
| 3 |
| 15 |
|
(1)原式=6-5+3
=4;
(2)原式=
-3
-
=
-
.
=4;
(2)原式=
| 3 |
| 5 |
| 3 |
| 5 |
| 5 |
=
| 3 |
| 18 |
| 5 |
| 5 |
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题目内容
| 6 |
| 25 |
| (-3)2 |
| 3 |
| 15 |
|
| 3 |
| 5 |
| 3 |
| 5 |
| 5 |
| 3 |
| 18 |
| 5 |
| 5 |