题目内容
(-
)÷5+2.5×
÷(-4)
| 125 |
| 3 |
| 4 |
| 3 |
原式=-(
×
)+
×
×(-
)
=-
-
=-
.
| 125 |
| 3 |
| 1 |
| 5 |
| 5 |
| 2 |
| 4 |
| 3 |
| 1 |
| 4 |
=-
| 25 |
| 3 |
| 5 |
| 6 |
=-
| 55 |
| 6 |
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题目内容
| 125 |
| 3 |
| 4 |
| 3 |
| 125 |
| 3 |
| 1 |
| 5 |
| 5 |
| 2 |
| 4 |
| 3 |
| 1 |
| 4 |
| 25 |
| 3 |
| 5 |
| 6 |
| 55 |
| 6 |