题目内容
计算:
(1)2
+3
(2)
×
-
(3)(3-2
)2
(4)
-3
+
.
(1)2
| 12 |
| 48 |
(2)
| 3 |
| 6 |
|
(3)(3-2
| 2 |
(4)
| 32 |
|
| 2 |
(1)原式=4
+12
=16
;
(2)原式=
-
=3
-
=
;
(3)原式=9+8-12
=17-12
;
(4)原式=4
-
+
=
.
| 3 |
| 3 |
=16
| 3 |
(2)原式=
| 18 |
| ||
| 2 |
=3
| 2 |
| ||
| 2 |
=
5
| ||
| 2 |
(3)原式=9+8-12
| 2 |
=17-12
| 2 |
(4)原式=4
| 2 |
3
| ||
| 2 |
| 2 |
=
7
| ||
| 2 |
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