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 |