题目内容
计算:
(1)(-
)×(-
)÷(-0.25);
(2)-1-[2-(1-
×0.5)]×[32-(-2)2].
(1)(-
| 2 |
| 3 |
| 8 |
| 5 |
(2)-1-[2-(1-
| 1 |
| 3 |
(1)原式=(-
)×(-
)×(-4)
=-
;
(2)原式=-1-(2-
)×(9-4)
=-1-
×5
=-1-
=-
.
| 2 |
| 3 |
| 8 |
| 5 |
=-
| 64 |
| 15 |
(2)原式=-1-(2-
| 5 |
| 6 |
=-1-
| 7 |
| 6 |
=-1-
| 35 |
| 6 |
=-
| 41 |
| 6 |
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