题目内容
计算:
(1)(
-
+
)×(-24);
(2)-14-
×[2+(-4)2].
(1)(
| 3 |
| 4 |
| 7 |
| 8 |
| 5 |
| 12 |
(2)-14-
| 1 |
| 6 |
(1)原式=-
×24+
×24-
×24
=-18+21-10
=-7;
(2)原式=-1-
×(2+16)=-1-3=-4.
| 3 |
| 4 |
| 7 |
| 8 |
| 5 |
| 12 |
=-18+21-10
=-7;
(2)原式=-1-
| 1 |
| 6 |
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