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(1)(712-13)×27(2)511×[(25+13)÷56].

题目详情
(1)(
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
(1)(
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
(1)(
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
(1)(
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
(1)(
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
7
12
-
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
7
12
7 12 7 7 12 12
1
3
)×
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
1
3
1 3 1 1 3 3
2
7
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
].
2
7
2 7 2 2 7 7
5
11
×[(
2
5
+
1
3
)÷
5
6
].
5
11
5 11 5 5 11 11
2
5
+
1
3
)÷
5
6
].
2
5
2 5 2 2 5 5
1
3
)÷
5
6
].
1
3
1 3 1 1 3 3
5
6
].
5
6
5 6 5 5 6 6
▼优质解答
答案和解析
(1)(
7
12
-
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
(1)(
7
12
-
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
(1)(
7
12
-
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
(1)(
7
12
-
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
(1)(
7
12
-
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
7
12
7 12 7 7 7 12 12 12 -
1
3
)×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
1
3
1 3 1 1 1 3 3 3 )×
2
7

=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
2
7
2 7 2 2 2 7 7 7 ,
=
1
4
×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
1
4
1 4 1 1 1 4 4 4 ×
2
7

=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
2
7
2 7 2 2 2 7 7 7 ,
=
1
14

(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
1
14
1 14 1 1 1 14 14 14 ;
(2)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
5
11
5 11 5 5 5 11 11 11 ×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
2
5
2 5 2 2 2 5 5 5 +
1
3
)÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
1
3
1 3 1 1 1 3 3 3 )÷
5
6
],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
5
6
5 6 5 5 5 6 6 6 ],
=
5
11
×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
5
11
5 11 5 5 5 11 11 11 ×(
11
15
÷
5
6
),
=
5
11
×
22
25

=
2
5
11
15
11 15 11 11 11 15 15 15 ÷
5
6
),
=
5
11
×
22
25

=
2
5
÷
5
6
5 6 5 5 5 6 6 6 ),
=
5
11
×
22
25

=
2
5
5
11
5 11 5 5 5 11 11 11 ×
22
25

=
2
5
22
25
22 25 22 22 22 25 25 25 ,
=
2
5
2
5
2 5 2 2 2 5 5 5 .