题目内容
比较大小:
(1)0.026______0,(2)-7.5______-7,(3)-
______-
,(4)|-5|______-(-5).
(1)0.026______0,(2)-7.5______-7,(3)-
| 2 |
| 3 |
| 3 |
| 4 |
(1)∵0.026是正数,
∴0.026>0;
(2)∵|-7.5|=7.5,|-7|=7,7.5>7,
∴-7.5<-7;
(3)∵-
=-
,-
=-
,|-
|=
<|-
|=
,
∴-
>-
,即-
>-
;
(4)∵|-5|=5,-(-5)=5,
∴|-5|=-(-5).
故答案为:>,<,>,=.
∴0.026>0;
(2)∵|-7.5|=7.5,|-7|=7,7.5>7,
∴-7.5<-7;
(3)∵-
| 2 |
| 3 |
| 8 |
| 12 |
| 3 |
| 4 |
| 9 |
| 12 |
| 8 |
| 12 |
| 8 |
| 12 |
| 9 |
| 12 |
| 9 |
| 12 |
∴-
| 8 |
| 12 |
| 9 |
| 12 |
| 2 |
| 3 |
| 3 |
| 4 |
(4)∵|-5|=5,-(-5)=5,
∴|-5|=-(-5).
故答案为:>,<,>,=.
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