题目内容
下列各数中,哪些是正数?哪些是负数?
3.2,-
,
,-1
,+2.009,-108,+
,81.
3.2,-
| 1 |
| 2 |
| 2 |
| 3 |
| 5 |
| 6 |
| 49 |
| 25 |
正数有:3.2,
,+2.009,+
,81; 负数有:-
,-1
,一108.
| 2 |
| 3 |
| 49 |
| 25 |
| 1 |
| 2 |
| 5 |
| 6 |
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