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看谁算得又对又快12-13=1-27-57=712-512=45-0.6=25+14=34+13+14=2-27=520+920=514-17-314=1-13+23=

题目详情
看谁算得又对又快
1
2
-
1
3
=		 1-
2
7
-
5
7
=
7
12
-
5
12
=
4
5
-0.6=
2
5
+
1
4
=
3
4
+
1
3
+
1
4
=
2-
2
7
=
5
20
+
9
20
=
5
14
-
1
7
-
3
14
=		 1-
1
3
+
2
3
=
看谁算得又对又快
1
2
-
1
3
=		 1-
2
7
-
5
7
=
7
12
-
5
12
=
4
5
-0.6=
2
5
+
1
4
=
3
4
+
1
3
+
1
4
=
2-
2
7
=
5
20
+
9
20
=
5
14
-
1
7
-
3
14
=		 1-
1
3
+
2
3
=
看谁算得又对又快
1
2
-
1
3
= 1-
2
7
-
5
7
=看谁算得又对又快
1
2
-
1
3
=
1
2
-
1
3
=
1
2
1122
1
3
=
1
3
11331-
2
7
-
5
7
=
2
7
-
5
7
=
2
7
2277
5
7
=
5
7
5577
7
12
-
5
12
=
4
5
-0.6=
7
12
-
5
12
=
7
12
-
5
12
=
7
12
771212
5
12
=
5
12
551212
4
5
-0.6=
4
5
-0.6=
4
5
4455
2
5
+
1
4
=
3
4
+
1
3
+
1
4
=
2
5
+
1
4
=
2
5
+
1
4
=
2
5
2255
1
4
=
1
4
1144
3
4
+
1
3
+
1
4
=
3
4
+
1
3
+
1
4
=
3
4
3344
1
3
+
1
4
=
1
3
1133
1
4
=
1
4
1144 2-
2
7
=
5
20
+
9
20
=2-
2
7
=
2
7
=
2
7
2277
5
20
+
9
20
=
5
20
+
9
20
=
5
20
552020
9
20
=
9
20
992020
5
14
-
1
7
-
3
14
= 1-
1
3
+
2
3
=
5
14
-
1
7
-
3
14
=
5
14
-
1
7
-
3
14
=
5
14
551414
1
7
-
3
14
=
1
7
1177
3
14
=
3
14
3314141-
1
3
+
2
3
=
1
3
+
2
3
=
1
3
1133
2
3
=
2
3
2233
▼优质解答
答案和解析
1
2
-
1
3
=
1
6
 1-
2
7
-
5
7
=0
7
12
-
5
12
=
1
6
4
5
-0.6=
1
5
2
5
+
1
4
=
13
20
3
4
+
1
3
+
1
4
=1
1
3
2-
2
7
=1
5
7
5
20
+
9
20
=
7
10
5
14
-
1
7
-
3
14
=0		 1-
1
3
+
2
3
=1
1
3
1
2
-
1
3
=
1
6
 1-
2
7
-
5
7
=0
1
2
-
1
3
=
1
6
1
2
-
1
3
=
1
6
1
2
111222-
1
3
=
1
6
1
3
111333=
1
6
1
6
111666 1-
2
7
-
5
7
=01-
2
7
-
5
7
=0
2
7
222777-
5
7
=0
5
7
555777=0
7
12
-
5
12
=
1
6
4
5
-0.6=
1
5
7
12
-
5
12
=
1
6
7
12
-
5
12
=
1
6
7
12
777121212-
5
12
=
1
6
5
12
555121212=
1
6
1
6
111666
4
5
-0.6=
1
5
4
5
-0.6=
1
5
4
5
444555-0.6=
1
5
1
5
111555
2
5
+
1
4
=
13
20
3
4
+
1
3
+
1
4
=1
1
3
2
5
+
1
4
=
13
20
2
5
+
1
4
=
13
20
2
5
222555+
1
4
=
13
20
1
4
111444=
13
20
13
20
131313202020
3
4
+
1
3
+
1
4
=1
1
3
3
4
+
1
3
+
1
4
=1
1
3
3
4
333444+
1
3
+
1
4
=1
1
3
1
3
111333+
1
4
=1
1
3
1
4
111444=1
1
3
1
3
111333 2-
2
7
=1
5
7
5
20
+
9
20
=
7
10
 2-
2
7
=1
5
7
2-
2
7
=1
5
7
2
7
222777=1
5
7
5
7
555777
5
20
+
9
20
=
7
10
5
20
+
9
20
=
7
10
5
20
555202020+
9
20
=
7
10
9
20
999202020=
7
10
7
10
777101010
5
14
-
1
7
-
3
14
=0 1-
1
3
+
2
3
=1
1
3
5
14
-
1
7
-
3
14
=0
5
14
-
1
7
-
3
14
=0
5
14
555141414-
1
7
-
3
14
=0
1
7
111777-
3
14
=0
3
14
333141414=0 1-
1
3
+
2
3
=1
1
3
1-
1
3
+
2
3
=1
1
3
1
3
111333+
2
3
=1
1
3
2
3
222333=1
1
3
1
3
111333
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