题目内容

计算,能用简便方法的要用简便方法计算.
9
14
÷8+
1
8
×
5
14
11
13
÷[(
5
8
+
3
4
)÷
5
8
]
25
18
÷5×
7
12
×
9
35
19
20
-(
3
5
+2×
1
8
(1)
9
14
÷8+
1
8
×
5
14

=
9
14
×
1
8
+
1
8
×
5
14

=(
9
14
+
5
14
)×
1
8

=1×
1
8

=
1
8


(2)
11
13
÷[(
5
8
+
3
4
)÷
5
8
],
=
11
13
÷[
11
8
÷
5
8
],
=
11
13
÷
11
5

=
5
13


(3)
25
18
÷5×
7
12
×
9
35

=
5
18
×
7
12
×
9
35

=
5
18
×
9
35
×
7
12

=
1
14
×
7
12

=
1
24


(4)
19
20
-(
3
5
+2×
1
8
),
=
19
20
-(
3
5
+
1
4
),
=
19
20
-
17
20

=
1
10
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