题目内容
计算:
(1)(5-
)2
(2)
+
-
(3)(
-2)2004×(
+2)2003
(4)
+(1-
)0.
(1)(5-
| 7 |
(2)
| 8 |
| 32 |
| 2 |
(3)(
| 5 |
| 5 |
(4)
2
| ||||
|
| 3 |
(1)原式=25-10
+7
=32-10
;
(2)原式=2
+4
-
=5
;
(3)原式=[(
-2)(
+2)]2003(
-2)
=(5-4)2003(
-2)
=
-2;
(4)原式=
+1
=
+1
=5+1
=6.
| 7 |
=32-10
| 7 |
(2)原式=2
| 2 |
| 2 |
| 2 |
=5
| 2 |
(3)原式=[(
| 5 |
| 5 |
| 5 |
=(5-4)2003(
| 5 |
=
| 5 |
(4)原式=
4
| ||||
|
=
5
| ||
|
=5+1
=6.
练习册系列答案
相关题目