问题 填空题
计算:
8
-
2
=______,(-3
2
3
)
2
=______;
(-5)2
=______.
答案

-
2
=2
2
-
2
=
2

(-3

2
3
2=9×
2
3
=6;

(-5)2
=5.

单项选择题
多项选择题