问题 解答题
用你喜欢的方法计算下面各题
16×
3
4
÷
4
9
9
7
+4÷
7
5
4-(
2
5
+
3
5
÷
1
2
(1-0.6)÷(
2
3
÷
4
9
答案

(1)16×

3
4
÷
4
9

=12÷

4
9

=27;

(2)4×

9
7
+4÷
7
5

=4×

9
7
+4×
5
7

=4×(

9
7
+
5
7
),

=4×2,

=8;

(3)4-(

2
5
+
3
5
÷
1
2
),

=4-(

2
5
+
6
5
),

=4-

8
5

=

12
5

(4)(1-0.6)÷(

2
3
÷
4
9
),

=0.4÷

3
2

=

4
15

单项选择题
单项选择题