题目内容

直接写出得数.
1
3
+
1
2
=
6
5
-
4
5
+
1
5
=
1
2
+
3
4
=
5
6
-
2
3
=
4
11
+
7
11
=
8
9
+
1
18
=
5
12
+
6
7
+
7
12
=
1
5
-
1
8
=
1
9
+
1
8
=
3-
3
7
-
4
7
=
1
3
+
1
2
=
5
6
6
5
-
4
5
+
1
5
=
3
5
1
2
+
3
4
=
5
4
5
6
-
2
3
=
1
6
4
11
+
7
11
=1,
8
9
+
1
18
=
17
18
5
12
+
6
7
+
7
12
=1
6
7
1
5
-
1
8
=
3
40
1
9
+
1
8
=
17
72
3-
3
7
-
4
7
=2.
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