题目内容

11
12
-
2
3
)÷
11
24
(1+
7
9
)×18
7
8
÷
35
36
×
5
6
4
9
×
7
15
+
4
9
×
2
15
5
6
-
4
11
×
33
32
18÷(
8
9
-
2
3
(1)(
11
12
-
2
3
)÷
11
24

=
1
4
×
24
11

=
6
11


(2)(1+
7
9
)×18
=1×18+
7
9
×18
=18+14
=32;

(3)
7
8
÷
35
36
×
5
6

=
7
8
×
36
35
×
5
6

=
3
4


(4)
4
9
×
7
15
+
4
9
×
2
15

=
4
9
×(
7
15
+
2
15

=
4
9
×
3
5

=
4
15


(5)
5
6
-
4
11
×
33
32

=
5
6
-
3
8

=
11
24


(6)18÷(
8
9
-
2
3

=18÷
2
9

=81.
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