题目内容
比较大小:-3
______-2
;2
-
______3
-
.
| 2 |
| 3 |
| 3 |
| 11 |
| 2 |
| 17 |
(1)∵-3
=-
,-2
=-
,
而18>12,
∴-3
<-2
;
(2)∵2
-
≈2×1.73-3.32=0.14,
3
-
≈3×1.41-4.12=0.11,0.14>0.11,
∴2
-
>3
-
.
故填空答案:<>.
| 2 |
| 18 |
| 3 |
| 12 |
而18>12,
∴-3
| 2 |
| 3 |
(2)∵2
| 3 |
| 11 |
3
| 2 |
| 17 |
∴2
| 3 |
| 11 |
| 2 |
| 17 |
故填空答案:<>.
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