题目内容
计算:
(1)-
×
;
(2)
-(
)2;
(3)
-|2|+(
)0.
(1)-
| 3 | 8 |
| 16 |
(2)
| (-2)2 |
| 3 |
(3)
| 9 |
| π |
| 3 |
(1)原式=-2×4
=-8;
(2)原式=2-3
=-1;
(3)原式=3-2+1
=2.
=-8;
(2)原式=2-3
=-1;
(3)原式=3-2+1
=2.
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题目内容
| 3 | 8 |
| 16 |
| (-2)2 |
| 3 |
| 9 |
| π |
| 3 |