Question

比较下面每组数的大小．
-4______1

5

2

______+2.5
2.3______-2.3
-

1

2

______-

3

4

．

Answer 1

-4＜1

5

2

=+2.5
2.3＞-2.3
-

1

2

＞-

3

4

．
故答案为：＜，=，＞，＞．