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脱式计算(能简便的要简便)(1)12-(78-35)(2)67-56+23(3)59-511+711+49(4)612-338-0.625.

题目详情
脱式计算(能简便的要简便)
(1)
1
2
-(
7
8
-
3
5

(2)
6
7
-
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.

1
2
-(
7
8
-
3
5

(2)
6
7
-
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
1
2
1122
7
8
-
3
5

(2)
6
7
-
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
7
8
7788
3
5

(2)
6
7
-
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
3
5
3355
6
7
-
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
6
7
6677
5
6
+
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
5
6
5566
2
3

(3)
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
2
3
2233
5
9
-
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
5
9
5599
5
11
+
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
5
11
551111
7
11
+
4
9

(4)6
1
2
-3
3
8
-0.625.
7
11
771111
4
9

(4)6
1
2
-3
3
8
-0.625.
4
9
4499
1
2
-3
3
8
-0.625.
1
2
1122
3
8
-0.625.
3
8
3388
▼优质解答
答案和解析
(1)
1
2
-(
7
8
-
3
5

=
1
2
-
11
40

=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
1
2
111222-(
7
8
-
3
5

=
1
2
-
11
40

=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
7
8
777888-
3
5

=
1
2
-
11
40

=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
3
5
333555)
=
1
2
-
11
40

=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
1
2
111222-
11
40

=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
11
40
111111404040
=
9
40
 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
9
40
999404040 

(2)
6
7
-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
6
7
666777-
5
6
+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
6
555666+
2
3

=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
2
3
222333
=
36
42
-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
36
42
363636424242-
35
42
+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
35
42
353535424242+
28
42

=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
28
42
282828424242
=
29
42



(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
29
42
292929424242


(3)
5
9
-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
9
555999-
5
11
+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
11
555111111+
7
11
+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
7
11
777111111+
4
9

=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
4
9
444999
=(
5
9
+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
9
555999+
4
9
)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
4
9
444999)+(
7
11
-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
7
11
777111111-
5
11
) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
11
555111111) 
=1+
2
11

=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
2
11
222111111
=1
2
11


(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
2
11
222111111

(4)6
1
2
-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
1
2
111222-3
3
8
-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
3
8
333888-0.625
=6
1
2
-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
1
2
111222-3
3
8
-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
3
8
333888-
5
8

=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
8
555888
=6
1
2
-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
1
2
111222-(3
5
8
+
5
8

=6
1
2
-4
=2
1
2
5
8
555888+
5
8

=6
1
2
-4
=2
1
2
5
8
555888)
=6
1
2
-4
=2
1
2
1
2
111222-4
=2
1
2
1
2
111222