题目内容
计算:
(1)2-1+
-
+(
)0;
(2)
-
-(
)2-|-4|.
(1)2-1+
| 4 |
| 3 | 8 |
| 2 |
(2)
| (-3)2 |
| 3 | -64 |
| 3 |
(1)原式=
+2-2+1
=1
;
(2)原式=3-(-4)-3-4
=3+4-3-4
=0.
| 1 |
| 2 |
=1
| 1 |
| 2 |
(2)原式=3-(-4)-3-4
=3+4-3-4
=0.
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题目内容
| 4 |
| 3 | 8 |
| 2 |
| (-3)2 |
| 3 | -64 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |