问题 解答题
计算下面各题:
(0.125×8-0.5)×4   
5
6
×0.25+
1
4
×
1
6
5
7
÷[1÷(
2
3
-
1
5
)].
答案

(0.125×8-0.5)×4 

=(1-0.5)×4,

=0.5×4,

=2;

5
6
×0.25+
1
4
×
1
6

=(

5
6
+
1
6
)×
1
4

=1×

1
4

=

1
4

5
7
÷[1÷(
2
3
-
1
5
)]

=

5
7
÷[1÷
7
15
],

=

5
7
÷
7
15

=1

26
49

单项选择题 A3/A4型题
单项选择题 A1型题