题目内容

计算下面各题.
9
×
÷
9
右0-1.9÷
1右
7
9
÷
0
÷
1九
9
×
8
+
×
1
8
九÷
8
-1.右
(
-
1
7
10
(1)
5
×
3
7
÷
5
6

=
5
12
×
6
5

=
1
2


(2)50-1.6÷
7
15

=50-1.6×
15
7

=50-6
=77;

(3)
7
÷
2
3
÷
17

=
7
×
3
2
×
17

=
3
7


(7)
3
7
×
5
8
+
3
7
×
1
8

=
3
7
×(
5
8
+
1
8

=
3
7
×
3
7

=
16


(5)7÷
8
3
-1.5
=7×
3
8
-1.5
=1.5-1.5
=0;

(6)(
3
7
-
1
3
)÷
7
12

=
5
12
×
12
7

=
5
7
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