题目内容

用递等式计算.
3
4
÷4÷
9
8
5
18
÷(
1
3
+
1
2
)
4
7
×
3
5
+
3
7
÷
5
3
8-2.7÷
9
13
7
6
÷(
8
3
×
7
2
)
6
2
7
×3
1
3
÷6
2
7
×
3
10
.
(1)
3
4
÷4÷
9
8

=
3
16
÷
9
8

=
1
6
;

(2)
5
18
÷(
1
3
+
1
2
)
=
5
18
÷
5
6

=
1
3
;

(3)
4
7
×
3
5
+
3
7
÷
5
3

=(
4
7
+
3
7
)×
3
5

=1×
3
5

=
3
5
;

(4)8-2.7÷
9
13

=8-3.9
=4.1;

(5)
7
6
÷(
8
3
×
7
2
)
=
7
6
÷
28
3

=
1
8
;

(6)6
2
7
×3
1
3
÷6
2
7
×
3
10

=(6
2
7
÷6
2
7
)×(3
1
3
×
3
10
)
=1×1
=1.
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