问题 填空题
计算:
4
=______,
3
-8
27
=______.
(
3
-2)
2
=______,
0.4×0.9
=______.
答案

4
=2,

3
-8
27
=-
2
3

(
3
-2)
2
=2-
3

0.4×0.9
=0.6.

故答案为2,-

2
3
,2-
3
,0.6.

单项选择题
单项选择题