问题 填空题
比较大小:5______-8,-
3
4
______-
4
5
;直接写结果-(-2)2=______,-22=______,-7-2×5=______,3÷
5
4
×
4
5
=______.
答案

:5>-8,

-

3
4
>-
4
5

-(-2)2=-4,-22=-4,

-7-2×5=-7-10=-17,

5
4
×
4
5
=3×
4
5
×
4
5
=
48
25

故答案是:>;>;-4;-4;-17;

48
25

问答题
多项选择题