早教吧 育儿知识 作业答案 考试题库 百科 知识分享

脱式计算①6.25-40÷16×2.5②112+(4512-312)÷1124③(856-10.5×45)÷413④2720÷[534-4.5×(20%+1

题目详情
脱式计算
①6.25-40÷16×2.5
1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
脱式计算
①6.25-40÷16×2.5
1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
脱式计算
①6.25-40÷16×2.5
1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
脱式计算
①6.25-40÷16×2.5
1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
脱式计算
①6.25-40÷16×2.5
1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].


1
12
+(4
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
1
12
1 12 1 1 12 12
5
12
-3
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
5
12
5 12 5 5 12 12
1
2
)÷
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
1
2
1 2 1 1 2 2
11
24

③(8
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
11
24
11 24 11 11 24 24
5
6
-10.5×
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
5
6
5 6 5 5 6 6
4
5
)÷4
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
4
5
4 5 4 4 5 5
1
3

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
1
3
1 3 1 1 3 3
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
7
20
7 20 7 7 20 20
3
4
-4.5×(20%+
1
3
)].
3
4
3 4 3 3 4 4
1
3
)].
1
3
1 3 1 1 3 3
▼优质解答
答案和解析
①6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

1
12
+(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
①6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

1
12
+(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
①6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

1
12
+(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
①6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

1
12
+(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
①6.25-40÷16×2.5
=6.25-40×2.5÷16,
=6.25-100÷16,
=6.25-6.25,
=0;

1
12
+(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
12
1 12 1 1 1 12 12 12 +(4
5
12
-3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
5
12
5 12 5 5 5 12 12 12 -3
1
2
)÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
2
1 2 1 1 1 2 2 2 )÷
11
24

=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
11
24
11 24 11 11 11 24 24 24
=
1
12
+(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
12
1 12 1 1 1 12 12 12 +(
53
12
-
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
53
12
53 12 53 53 53 12 12 12 -
42
12
)×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
42
12
42 12 42 42 42 12 12 12 )×
24
11

=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
24
11
24 11 24 24 24 11 11 11 ,
=
1
12
+
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
12
1 12 1 1 1 12 12 12 +
11
12
×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
11
12
11 12 11 11 11 12 12 12 ×
24
11

=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
24
11
24 11 24 24 24 11 11 11 ,
=
1
12
+2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
12
1 12 1 1 1 12 12 12 +2,
=2
1
12


③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
12
1 12 1 1 1 12 12 12 ;

③(8
5
6
-10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
5
6
5 6 5 5 5 6 6 6 -10.5×
4
5
)÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
4
5
4 5 4 4 4 5 5 5 )÷4
1
3

=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
3
1 3 1 1 1 3 3 3
=(8
5
6
-8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
5
6
5 6 5 5 5 6 6 6 -8
2
5
÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
2
5
2 5 2 2 2 5 5 5 ) ÷
13
3

=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
÷
13
3
13 3 13 13 13 3 3 3 ,
=(
53
6
-
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
53
6
53 6 53 53 53 6 6 6 -
42
5
)×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
42
5
42 5 42 42 42 5 5 5 )×
3
13

=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
3
13
3 13 3 3 3 13 13 13 ,
=(
265
30
-
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
265
30
265 30 265 265 265 30 30 30 -
252
30
)×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
-
252
30
252 30 252 252 252 30 30 30 )×
3
13

=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
3
13
3 13 3 3 3 13 13 13 ,
=
13
30
×
3
13

=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
13
30
13 30 13 13 13 30 30 30 ×
3
13
3 13 3 3 3 13 13 13 ,
=
1
10


④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
10
1 10 1 1 1 10 10 10 ;

④2
7
20
÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
7
20
7 20 7 7 7 20 20 20 ÷[5
3
4
-4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
3
4
3 4 3 3 3 4 4 4 -4.5×(20%+
1
3
)].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
3
1 3 1 1 1 3 3 3 )].
=2.35÷[5.75-(4.5×20%+4.5×
1
3
)],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
1
3
1 3 1 1 1 3 3 3 )],
=2.35÷[5.75-(0.9+1.5)],
=2.35÷[5.75-2.4],
=2.35÷3.35,
=
47
67
47
67
47 67 47 47 47 67 67 67 .