问题 解答题
计算下面各题,能简算的要简算.
7
12
+
3
8
-
5
6
)÷
1
24

3
8
×
5
6
-
1
3
×
3
8
答案

(1)(

7
12
+
3
8
-
5
6
)÷
1
24

=(

7
12
+
3
8
-
5
6
)×24,

=

7
12
×24+
3
8
×24-
5
6
×24,

=14+9-20,

=23-20,

=3;

(2)

3
8
×
5
6
-
1
3
×
3
8

=

3
8
×(
5
6
-
1
3
),

=

3
8
×
1
2

=

3
16

判断题
单项选择题