题目内容
求下列各式的值:
(1)
-
+
;
(2)(-3)2-
+
.
(1)
| (-4)2 |
| 3 | -8 |
1
|
(2)(-3)2-
| 10-2 |
| 3 | 27 |
(1)原式=4+2+
=7
;
(2)原式=9-
+3
=11
.
| 5 |
| 4 |
=7
| 1 |
| 4 |
(2)原式=9-
| 1 |
| 10 |
=11
| 9 |
| 10 |
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题目内容
| (-4)2 |
| 3 | -8 |
1
|
| 10-2 |
| 3 | 27 |
| 5 |
| 4 |
| 1 |
| 4 |
| 1 |
| 10 |
| 9 |
| 10 |