题目内容

计算下面各题.
7
18
÷
5
9
7
10
÷4÷
14
5
1
4
×
8
9
÷
9
10
5-
7
15
÷
1
3
-
3
5
6
7
-
7
6
÷
1
9
6
7
-
3
5
)÷
9
5

(1)
7
18
÷
5
9

=
7
18
×
9
5

=
7
10


(2)
7
10
÷4÷
14
5

=
7
40
÷
14
5

=
1
16


(3)
1
4
×
8
9
÷
9
10

=
2
9
÷
9
10

=
20
81


(4)5-
7
15
÷
1
3
-
3
5

=5-
7
5
-
3
5

=5-(
7
5
+
3
5
),
=5-2,
=3;

(5)9÷
6
7
-
7
6
÷
1
9

=
21
2
-
21
2

=0;

(6)(
6
7
-
3
5
)÷
9
5

=
9
35
÷
9
5

=
1
7
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