问题 解答题
8
13
÷4×
5
6
5
9
×
6
7
÷
5
6
30-1.6÷
4
15
(
1
6
+
1
2
6
7
答案

(1)

8
13
÷4×
5
6

=

2
13
×
5
6

=

5
39

(2)

5
9
×
6
7
÷
5
6

=

10
21
÷
5
6

=

4
7

(3)30-1.6÷

4
15

=30-6

=24;

(4)(

1
6
+
1
2
6
7

=

2
3
÷
6
7

=

7
9

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