题目内容
计算:
(1)
-2
+
;
(2)(3+
)(3-
)-(
-1)2.
(1)
| 32 |
|
| 0.5 |
(2)(3+
| 5 |
| 5 |
| 3 |
(1)原式=4
-
+
=4
;
(2)原式=9-5-(3-2
+1)=9-5-3+2
-1=2
.
| 2 |
| ||
| 2 |
| ||
| 2 |
| 2 |
(2)原式=9-5-(3-2
| 3 |
| 3 |
| 3 |
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题目内容
| 32 |
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| 0.5 |
| 5 |
| 5 |
| 3 |
| 2 |
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| 2 |
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| 2 |
| 2 |
| 3 |
| 3 |
| 3 |