题目内容
计算:
(1)3+50÷22×(-
)-1
(2)[(-1)2005-(
-
-
)×24]÷|-22|.
(1)3+50÷22×(-
| 1 |
| 5 |
(2)[(-1)2005-(
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 8 |
(1)原式=3+50×
×(-
)-1
=3-
-1
=-
;
(2)原式=(-1-
×24+
×24+
×24)×
=(-1-18+4+9)×
=-6×
=-
.
| 1 |
| 4 |
| 1 |
| 5 |
=3-
| 5 |
| 2 |
=-
| 1 |
| 2 |
(2)原式=(-1-
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 8 |
| 1 |
| 4 |
=(-1-18+4+9)×
| 1 |
| 4 |
=-6×
| 1 |
| 4 |
=-
| 3 |
| 2 |
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