摘要：计算式 ()2·(-)-2-(1.75-)0+2-1
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计算下列各式：
①(-
)+(+
)+(-
)+(+
)+(-
)
②-1
-(-2
)+(-3
)-(-4.75)
③-5×(-
)+13×(-
)-3×(-
)
④-0.25÷(-
)×(-1
)
⑤-14-
×[2-(-3)]2
⑥(-3)2-(-12)×(
-
)+(-22)÷(-
)
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①(-
| 1 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 4 |
| 5 |
| 1 |
| 2 |
②-1
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
③-5×(-
| 11 |
| 5 |
| 11 |
| 5 |
| 11 |
| 5 |
④-0.25÷(-
| 2 |
| 3 |
| 3 |
| 5 |
⑤-14-
| 1 |
| 6 |
⑥(-3)2-(-12)×(
| 1 |
| 3 |
| 5 |
| 6 |
| 2 |
| 3 |