题目内容
在横线上填上“>”、“<”或“=”.
+
-
-
+
+
+
| 1 |
| 4 |
| 2 |
| 3 |
<
<
1| 2 |
| 5 |
| 1 |
| 6 |
=
=
| 7 |
| 30 |
| 1 |
| 3 |
| 1 |
| 4 |
<
<
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 2 |
>
>
| 1 |
| 4 |
| 1 |
| 5 |
| 2 |
| 3 |
>
>
| 11 |
| 15 |
| 4 |
| 5 |
| 3 |
| 4 |
<
<
2.分析:先计算出各个算式的结果,然后再根据分数大小比较的方法进行解答.
解答:解:
(1)
+
=
;
<1;
所以,
+
<1;
(2)
-
=
;
(3)
-
=
;
<
;
所以,
-
<
;
(4)
+
=
;
>
;
所以,
+
>
;
(5)
+
=
;
>
;
所以,
+
>
;
(6)
+
=
;
<2;
所以,
+
<2.
故答案为:<,=,<,>,>,<.
(1)
| 1 |
| 4 |
| 2 |
| 3 |
| 11 |
| 12 |
| 11 |
| 12 |
所以,
| 1 |
| 4 |
| 2 |
| 3 |
(2)
| 2 |
| 5 |
| 1 |
| 6 |
| 7 |
| 30 |
(3)
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| 12 |
| 1 |
| 2 |
所以,
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2 |
(4)
| 3 |
| 4 |
| 1 |
| 2 |
| 5 |
| 4 |
| 5 |
| 4 |
| 1 |
| 4 |
所以,
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
(5)
| 1 |
| 5 |
| 2 |
| 3 |
| 13 |
| 15 |
| 13 |
| 15 |
| 11 |
| 15 |
所以,
| 1 |
| 5 |
| 2 |
| 3 |
| 11 |
| 15 |
(6)
| 4 |
| 5 |
| 3 |
| 4 |
| 31 |
| 20 |
| 31 |
| 20 |
所以,
| 4 |
| 5 |
| 3 |
| 4 |
故答案为:<,=,<,>,>,<.
点评:关键是先计算出算式的结果,然后再比较大小.
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