早教吧 育儿知识 作业答案 考试题库 百科 知识分享

混合运算.0.21÷[1-(4-3.25)](580-3660÷12)×535×(17+821÷23)[1718-(49+13)]÷16.

题目详情
混合运算.
0.21÷[1-(4-3.25)]
(580-3660÷12)×5
3
5
×(
1
7
+
8
21
÷
2
3

[
17
18
-(
4
9
+
1
3
)]÷
1
6



3
5
×(
1
7
+
8
21
÷
2
3

[
17
18
-(
4
9
+
1
3
)]÷
1
6
3
5
3355
1
7
+
8
21
÷
2
3

[
17
18
-(
4
9
+
1
3
)]÷
1
6
1
7
1177
8
21
÷
2
3

[
17
18
-(
4
9
+
1
3
)]÷
1
6
8
21
882121
2
3

[
17
18
-(
4
9
+
1
3
)]÷
1
6
2
3
2233
17
18
-(
4
9
+
1
3
)]÷
1
6
17
18
17171818
4
9
+
1
3
)]÷
1
6
4
9
4499
1
3
)]÷
1
6
1
3
1133
1
6
1
6
1166
▼优质解答
答案和解析
(1)0.21÷[1-(4-3.25)],
=0.21÷[1-0.75],
=0.21÷0.25,
=0.84;

(2)(580-3660÷12)×5,
=(580-305)×5,
=275×5,
=1375;

(3)
3
5
×(
1
7
+
8
21
÷
2
3
),
=
3
5
×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
5
333555×(
1
7
+
8
21
÷
2
3
),
=
3
5
×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
1
7
111777+
8
21
÷
2
3
),
=
3
5
×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
8
21
888212121÷
2
3
),
=
3
5
×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
2
3
222333),
=
3
5
×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
5
333555×(
1
7
+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
1
7
111777+
8
21
×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
8
21
888212121×
3
2
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
2
333222),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
5
333555×(
1
7
+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
1
7
111777+
4
7
),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
4
7
444777),
=
3
5
×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
5
333555×
5
7

=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
5
7
555777,
=
3
7


(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
7
333777;

(4)[
17
18
-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
17
18
171717181818-(
4
9
+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
4
9
444999+
1
3
)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
1
3
111333)]÷
1
6

=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
1
6
111666,
=[
17
18
-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
17
18
171717181818-(
4
9
+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
4
9
444999+
3
9
)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
3
9
333999)]×6,
=[
17
18
-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
17
18
171717181818-
7
9
]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
7
9
777999]×6,
=[
17
18
14
18
]×6,
=
1
6
×6,
=1.
17
18
171717181818−
14
18
141414181818]×6,
=
1
6
×6,
=1.
1
6
111666×6,
=1.