题目内容

计算.
4
1
6
÷
5
8
-3
3
8
×1
1
15
4
5
×25
5
8
-20
5
12
÷5+5
1
6
(1
2
3
-1
2
5
)÷(6-
2
7
)×4
2
7
[1
1
5
×(1
1
2
-
2
3
)+5
3
5
]÷3
1
7
4
1
6
÷
5
8
-3
3
8
×1
1
15

=
25
6
×
8
5
-
26
8
×
16
15

=
20
3
-
52
15

=
48
15

=3
1
5

1
2
3
-1
2
5
)÷(6-
2
7
)×4
2
7

=
4
15
÷
40
7
×
30
7

=
4
15
×
7
40
×
30
7

=
1
5

4
5
×25
5
8
-20
5
12
÷5+5
1
6

=
4
5
×
205
8
-
245
12
×
1
5
+5
1
6

=
41
2
-
49
12
+5
1
6

=
492
12
-
49
12
+5
2
12

=42
1
12

[1
1
5
×(1
1
2
-
2
3
)+5
3
5
]÷3
1
7

=[
6
5
×
5
6
+
8
5
22
7

=
13
5
×
7
22

=
91
110
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