试题

题目:
把下列各数分别填在相应的横线上:
1,-0.20,3
1
5
,325,-789,0,-23.13,0.618,-2004.
正数有:
1,3
1
5
,325,0.618
1,3
1
5
,325,0.618

分数有:
-0.02,3
1
5
,-23.13,0.618
-0.02,3
1
5
,-23.13,0.618

负数有:
-0.20,-789,-23.13,-2004
-0.20,-789,-23.13,-2004
;  
正整数有:
1,325
1,325

非正数有:
-0.20,-789.-23.13,-2004,0
-0.20,-789.-23.13,-2004,0
;  
负整数有:
-789,-2004
-789,-2004

非负数有:
1,3
1
5
,325,0.618,0
1,3
1
5
,325,0.618,0
;  
负分数有:
-0.20,-23.13
-0.20,-23.13

答案
1,3
1
5
,325,0.618

-0.02,3
1
5
,-23.13,0.618

-0.20,-789,-23.13,-2004

1,325

-0.20,-789.-23.13,-2004,0

-789,-2004

1,3
1
5
,325,0.618,0

-0.20,-23.13

解:正数有:1,3
1
5
,325,0.618;
分数有:-0.02,3
1
5
,-23.13,0.618;
负数有:-0.20,-789,-23.13,-2004;  
正整数有:1,325;
非正数有:-0.20,-789.-23.13,-2004,0;  
负整数有:-789,-2004;
非负数有:1,3
1
5
,325,0.618,0;  
负分数有:-0.20,-23.13.
故答案为:1,3
1
5
,325,0.618;-0.02,3
1
5
,-23.13,0.618;-0.20,-789,-23.13,-2004;1,325;-0.20,-789.-23.13,-2004,0;-789,-2004;1,3
1
5
,325,0.618,0;-0.20,-23.13.
考点梳理
有理数.
根据有理数的分类分别进行填写即可.
此题考查了有理数的分类,认真掌握正数、负数、整数、分数、正有理数、负有理数、非负数的定义与特点.注意整数和正数的区别,注意0是整数,但不是正数.
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