题目内容

计算下面各题,怎样简便就怎样算.
7
13
×
3
4
+
3
4
×
6
13
3
7
÷
7
11
+
4
7
÷
7
11
12
7
÷(
2
3
-
1
4
5
9
+
5
9
÷
5
3
16
5
×
1
2
÷
2
5
6×(
7
9
+
5
6
)÷
29
5
(1)
7
13
×
3
4
+
3
4
×
6
13

=
3
4
×(
7
13
+
6
13

=
3
4
×1
=
3
4


(2)
3
7
÷
7
11
+
4
7
÷
7
11

=(
3
7
+
4
7
)×
11
7

=1×
11
7

=1
4
7


(3)
12
7
÷(
2
3
-
1
4

=
12
7
÷
5
12

=4
4
35


(4)
5
9
+
5
9
÷
5
3

=
5
9
+
1
3

=
8
9


(5)
16
5
×
1
2
÷
2
5

=
8
5
÷
2
5

=4;

(6)6×(
7
9
+
5
6
)÷
29
5

=(6×
7
9
+6×
5
6
)÷
29
5

=(
14
3
+5)÷
29
5

=
29
3
÷
29
5

=1
2
3
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