早教吧 育儿知识 作业答案 考试题库 百科 知识分享

用递等式计算(注意运用简便算法).56×(47+58)25×17×816.4+3.5×529-6.46-3.54518×27+318×27710×59÷1415.

题目详情
用递等式计算(注意运用简便算法).
56×(
4
7
+
5
8
)              25×17×8                16.4+3.5×5
29-6.46-3.54             
5
18
×27+
3
18
×27            
7
10
×
5
9
÷
14
15

4
7
+
5
8
)              25×17×8                16.4+3.5×5
29-6.46-3.54             
5
18
×27+
3
18
×27            
7
10
×
5
9
÷
14
15
4
7
4477
5
8
)              25×17×8                16.4+3.5×5
29-6.46-3.54             
5
18
×27+
3
18
×27            
7
10
×
5
9
÷
14
15
5
8
5588
5
18
×27+
3
18
×27            
7
10
×
5
9
÷
14
15
5
18
551818
3
18
×27            
7
10
×
5
9
÷
14
15
3
18
331818
7
10
×
5
9
÷
14
15
7
10
771010
5
9
÷
14
15
5
9
5599
14
15
14
15
14141515
▼优质解答
答案和解析
(1)56×(
4
7
+
5
8
) 
=56×
4
7
+56×
5
8

=32+35
=67;

(2)25×17×8 
=25×8×17
=200×17
=3400;

(3)16.4+3.5×5
=16.4+17.5
=33.9;

(4)29-6.46-3.54
=29-(6.46+3.54)
=29-10
=19;

(5)
5
18
×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
4
7
444777+
5
8
) 
=56×
4
7
+56×
5
8

=32+35
=67;

(2)25×17×8 
=25×8×17
=200×17
=3400;

(3)16.4+3.5×5
=16.4+17.5
=33.9;

(4)29-6.46-3.54
=29-(6.46+3.54)
=29-10
=19;

(5)
5
18
×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
5
8
555888) 
=56×
4
7
+56×
5
8

=32+35
=67;

(2)25×17×8 
=25×8×17
=200×17
=3400;

(3)16.4+3.5×5
=16.4+17.5
=33.9;

(4)29-6.46-3.54
=29-(6.46+3.54)
=29-10
=19;

(5)
5
18
×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
4
7
444777+56×
5
8

=32+35
=67;

(2)25×17×8 
=25×8×17
=200×17
=3400;

(3)16.4+3.5×5
=16.4+17.5
=33.9;

(4)29-6.46-3.54
=29-(6.46+3.54)
=29-10
=19;

(5)
5
18
×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
5
8
555888
=32+35
=67;

(2)25×17×8 
=25×8×17
=200×17
=3400;

(3)16.4+3.5×5
=16.4+17.5
=33.9;

(4)29-6.46-3.54
=29-(6.46+3.54)
=29-10
=19;

(5)
5
18
×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
5
18
555181818×27+
3
18
×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
3
18
333181818×27 
=( 
5
18
+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
5
18
555181818+
3
18
)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
3
18
333181818)×27 
=
4
9
×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
4
9
444999×27
=12;

(6)
7
10
×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
7
10
777101010×
5
9
÷
14
15

=
7
18
×
15
14

=
5
12
5
9
555999÷
14
15

=
7
18
×
15
14

=
5
12
14
15
141414151515
=
7
18
×
15
14

=
5
12
7
18
777181818×
15
14

=
5
12
15
14
151515141414
=
5
12
5
12
555121212.