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