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递等式计算(能简便的要写出简便过程).(1)0.8+449+15+559;(2)2.05-0.81÷2.7×4.5;(3)10.625×2005+2005×38-2005;(4)415÷(145-23×56)+56;(5)845÷[4.6+179×(434-1.15)];(6)9.

题目详情

4
9
+
1
5
+5
5
9
;                
(2)2.05-0.81÷2.7×4.5;
(3)10.625×2005+2005×
3
8
-2005;     
(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
4
9
4499
1
5
+5
5
9
;                
(2)2.05-0.81÷2.7×4.5;
(3)10.625×2005+2005×
3
8
-2005;     
(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
1
5
1155
5
9
;                
(2)2.05-0.81÷2.7×4.5;
(3)10.625×2005+2005×
3
8
-2005;     
(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
5
9
5599

3
8
-2005;     
(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
3
8
3388
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
4
15
441515
4
5
-
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
4
5
4455
2
3
×
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
2
3
2233
5
6
)+
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
5
6
5566
5
6

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
5
6
5566
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
4
5
4455
7
9
×(4
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
7
9
7799
3
4
-1.15)];
(6)9.8-(
3
5
+2.4×2
2
3
).
3
4
3344
3
5
+2.4×2
2
3
).
3
5
3355
2
3
).
2
3
2233
▼优质解答
答案和解析
(1)0.8+4
4
9
+
1
5
+5
5
9

=(0.8+
1
5
)+(4
4
9
+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
9
444999+
1
5
+5
5
9

=(0.8+
1
5
)+(4
4
9
+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
1
5
111555+5
5
9

=(0.8+
1
5
)+(4
4
9
+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
9
555999
=(0.8+
1
5
)+(4
4
9
+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
1
5
111555)+(4
4
9
+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
9
444999+5
5
9

=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
9
555999)
=1+10
=11;
             
(2)2.05-0.81÷2.7×4.5
=2.05-0.3×4.5
=2.05-1.35
=0.7;

(3)10.625×2005+2005×
3
8
-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
3
8
333888-2005
=2005×(10.625+
2
8
-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
2
8
222888-1)
=2005×10
=20050;

(4)
4
15
÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
15
444151515÷(1
4
5
-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
5
444555-
2
3
×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
2
3
222333×
5
6
)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
6
555666)+
5
6

=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
6
555666
=
4
15
÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
15
444151515÷(1
4
5
-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
5
444555-
5
9
)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
9
555999)+
5
6

=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
6
555666
=
4
15
×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
15
444151515×
45
24
+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
45
24
454545242424+
5
6

=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
6
555666
=
1
2
+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
1
2
111222+
5
6

=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
5
6
555666
=
4
3


(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
3
444333;

(5)8
4
5
÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
5
444555÷[4.6+1
7
9
×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
7
9
777999×(4
3
4
-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
3
4
333444-1.15)]
=8
4
5
÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
5
444555÷[4.6+1
7
9
×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
7
9
777999×3.6]
=8
4
5
÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(
4
5
444555÷[4.6+6.4]
=8.8÷11
=0.8;

(6)9.8-(