题目内容
计算:-12005-(1+0.5)×3-1÷(-2)2+(cos60°-
)0.
| 4 |
| 3 |
原式=-1-
×
÷4+1 (4分)
=-
×
×
(6分)
=-
. (8分)
| 3 |
| 2 |
| 1 |
| 3 |
=-
| 3 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
=-
| 1 |
| 8 |
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题目内容
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