题目内容
把下列和数分别填在相应的括号内:
0.51525354…,
,0.
,0,
,
,
,
,0.18,-6
整数{
分数{
,
,0.18
,
,0.18};
正数{
负数{
有理数{
,0.
,0,
,
,0.18,-6
,0.
,0,
,
,0.18,-6 };
无理数{
0.51525354…,
|
| • |
| 2 |
| 1 |
| π |
| 7 |
| 131 |
| 11 |
| 3 | 27 |
整数{
0,
,-6
| 3 | 27 |
0,
,-6
};| 3 | 27 |
分数{
|
| 131 |
| 11 |
|
| 131 |
| 11 |
正数{
0.51525354…,
,0.
,0,
,
,
,
,0.18
|
| • |
| 2 |
| 1 |
| π |
| 7 |
| 131 |
| 11 |
| 3 | 27 |
0.51525354…,
,0.
,0,
,
,
,
,0.18
};
|
| • |
| 2 |
| 1 |
| π |
| 7 |
| 131 |
| 11 |
| 3 | 27 |
负数{
-6
-6
};有理数{
|
| • |
| 2 |
| 131 |
| 11 |
| 3 | 27 |
|
| • |
| 2 |
| 131 |
| 11 |
| 3 | 27 |
无理数{
0.51525354…,
,
| 1 |
| π |
| 7 |
0.51525354…,
,
}.| 1 |
| π |
| 7 |
分析:根据实数的分类进行解答即可.
解答:解:0.51525354…是无理数,是正数;
=
是正数也是分数;
0.
是正数也是小数,故是有理数;
0是整数;
是无理数,是正数;
是无理数,是正数;
是分数,也是正数;
=3是有理数,是整数,也是正数;
0.18是正数,也是小数;
-6是整数,也是负数.
故答案为:0,
,-6;
,
,0.18;0.51525354…,
,0.
,0,
,
,
,
,0.18;-6;
,0.
,0,
,
,0.18,-6;0.51525354…,
,
.
|
| 7 |
| 10 |
0.
| • |
| 2 |
0是整数;
| 1 |
| π |
| 7 |
| 131 |
| 11 |
| 3 | 27 |
0.18是正数,也是小数;
-6是整数,也是负数.
故答案为:0,
| 3 | 27 |
|
| 131 |
| 11 |
|
| • |
| 2 |
| 1 |
| π |
| 7 |
| 131 |
| 11 |
| 3 | 27 |
|
| • |
| 2 |
| 131 |
| 11 |
| 3 | 27 |
| 1 |
| π |
| 7 |
点评:本题考查的是实数的分类,熟知0既不是正数,也不是负数是解答此题的关键.
练习册系列答案
相关题目