问题 解答题
用你喜欢的方法计算下面各题.
3
10
÷6×
2
5
1
5
+
4
5
×
1
2
3
4
×
5
6
+
3
4
÷6
11
12
÷[(
1
3
+
2
5
)×15]
答案

(1)

3
10
÷6×
2
5

=

3
10
×
1
6
×
2
5

=

1
50

(2)

1
5
+
4
5
×
1
2

=

1
5
+
2
5

=

3
5

(3)

3
4
×
5
6
+
3
4
÷6,

=

3
4
×
5
6
+
3
4
×
1
6

=

3
4
×(
5
6
+
1
6
),

=

3
4
×1,

=

3
4

(4)

11
12
÷[(
1
3
+
2
5
)×15],

=

11
12
÷[
1
3
×15+
2
5
×15],

=

11
12
÷[5+6],

=

11
12
×
1
11

=

1
12

判断题
判断题