题目内容

计算
(1)
3
4
÷(2+
3
4
2
11
(2)
7
10
×
5
14
+
2
7
÷
3
14
(3)
9
20
×
3
8
×
5
9
×
4
3
(4)
27
8
÷[(
1
3
-
1
4
9
4
]
(5)
4
7
+
5
9
÷
4
7
+
11
8
(6)
3
10
-(
3
5
-
2
5
÷
2
3
)
(1)
3
4
÷(2+
3
4
2
11

=
3
4
÷
11
4
×
2
11

=
3
11
×
2
11

=
6
121


(2)
7
10
×
5
14
+
2
7
÷
3
14

=
1
4
+
4
3

=1
7
12


(3)
9
20
×
3
8
×
5
9
×
4
3

=(
9
20
×
5
9
)×(
3
8
×
4
3
),
=
1
4
×
1
2

=
1
8


(4)
27
8
÷[(
1
3
-
1
4
9
4
]

=
27
8
÷[
1
12
×
9
4
],
=
27
8
÷
3
16

=18;

(5)
4
7
+
5
9
÷
4
7
+
11
8

=
4
7
+
35
36
+
11
8

=
389
252
+
11
8

=2
463
504
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