题目内容

(
2
17
+
1
3
5
51
5
12
÷(
5
12
÷
1
3
)
3
4
÷14÷
9
10
6
25
÷
3
4
+
5
3
×
6
25
(1)(
2
17
+
1
3
)÷
5
51

=
23
51
×
51
5

=
23
5


(2)
5
12
÷(
5
12
÷
1
3

=
5
12
÷(
5
12
×3)
=
5
12
÷
5
4

=
5
12
×
4
5

=
1
3


(3)
3
4
÷14÷
9
10

=
3
4
×
1
14
×
10
9

=
5
84


(4)
6
25
÷
3
4
+
5
3
×
6
25

=
6
25
×
4
3
+
5
3
×
6
25

=(
4
3
+
5
3
)×
6
25

=3×
6
25

=
18
25
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