试题与答案

计算:(-7)2=______,(25)2=______,82=______,1

题型:填空题

题目:

计算:
(-7)2
=______,(2
5
)2
=______,
8
2
=______,
1
3
=______.

答案:

(-7)2
=7;

(2

5
)2=22×(
5
2=4×5=20;

8
2
=
8
2
=
4
=2;

1
3
=
3
(
3
)2
=
3
3

故答案为:7,20,2,

3
3

试题推荐
微信公众账号搜索答案