题目内容
-3.5÷
×(-
).
| 7 |
| 8 |
| 3 |
| 4 |
分析:首先把除法统一成乘法,再判断结果的符号,然后相乘即可.
解答:解:原式=-
×
×(-
)
=
×
×
=3.
| 7 |
| 2 |
| 8 |
| 7 |
| 3 |
| 4 |
=
| 7 |
| 2 |
| 8 |
| 7 |
| 3 |
| 4 |
=3.
点评:此题主要考查了有理数的乘除法,关键是注意结果符号的判断.
练习册系列答案
相关题目
题目内容
| 7 |
| 8 |
| 3 |
| 4 |
| 7 |
| 2 |
| 8 |
| 7 |
| 3 |
| 4 |
| 7 |
| 2 |
| 8 |
| 7 |
| 3 |
| 4 |