题目内容
(-1)5×[4
÷(-4)+(-1
)×(-0.4)]÷(-
).
2 |
3 |
1 |
4 |
1 |
3 |
原式=-1×(-
×
+
×
)×(-3)
=3×(-
+
)
=3×(-
)
=-2.
14 |
3 |
1 |
4 |
5 |
4 |
2 |
5 |
=3×(-
7 |
6 |
1 |
2 |
=3×(-
2 |
3 |
=-2.
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