题目内容
计算:
(1)
-(2+
)2
(2)
÷
×
(3)
+(-2)2×
-
+(
-
)0.
(1)
| 32 |
| 2 |
(2)
1
|
2
|
1
|
(3)
| 3 | ||
|
|
| 3 |
| 2005 |
| 2004 |
(1)原式=4
-(4+4
+2)
=4
-4-4
-2
=-6;
(2)原式=
÷
×
=
=1;
(3)原式=
+4×
-
+1
=
+
-
+1
=
+1.
| 2 |
| 2 |
=4
| 2 |
| 2 |
=-6;
(2)原式=
|
|
|
=
|
=1;
(3)原式=
| 3 |
| ||
| 4 |
| 3 |
=
| 3 |
| 2 |
| 3 |
=
| 2 |
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