题目内容

脱式计算
1
4
-
1
12
)÷
3
8

2
9
+
1
2
÷
4
5
+
3
8

1
6
×
8
3
÷(
4
5
-
8
15

[3.2×(1-
5
8
)+
18
5
12
25
1
4
-
1
12
)÷
3
8

=
1
6
×
8
3

=
4
9


2
9
+
1
2
÷
4
5
+
3
8

=
2
9
+
5
8
+
3
8

=
2
9
+(
5
8
+
3
8
),
=
2
9
+1,
=1
2
9


1
6
×
8
3
÷(
4
5
-
8
15

=
4
9
÷
4
15

=
5
3


[3.2×(1-
5
8
)+
18
5
12
25

=[
16
5
×
3
8
+
18
5
12
25

=[
6
5
+
18
5
25
12

=
24
5
×
25
12

=10.
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