题目内容

怎样简便就怎样算.
3
4
×
8
15
÷
8
9
(
2
3
-
1
9
5
26
2
9
÷[(1-
3
7
5
6
]
9
5
+
11
12
+
1
12
+
1
5
3
5
÷6+
1
6
×
2
5
(
2
3
+
1
4
-
1
6
)×12
(1)
3
4
×
8
15
÷
8
9
=
3
4
×
8
15
×
9
8

=
9
20


(2)(
2
3
-
1
9
5
26

=
5
9
×
26
5

=
26
9


(3)
2
9
÷[(1-
3
7
5
6
]

=
2
9
÷[
4
7
×
5
6
],
=
2
9
×
21
10

=
7
15


(4)
9
5
+
11
12
+
1
12
+
1
5

=(
9
5
++
1
5
)+(
11
12
+
1
12
),
=2+1,
=3;

(5)
3
5
÷6+
1
6
×
2
5

=
3
5
×
1
6
+
1
6
×
2
5

=(
3
5
+
2
5
)×
1
6

=
1
6


(6)(
2
3
+
1
4
-
1
6
)×12

=
2
3
×12+
1
4
×12
-
1
6
×12

=8+3-2,
=9.
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