问题 解答题
直接写得数:
5
13
+
6
13
=
7
8
-
1
8
=
1
5
-
1
6
=
7
12
-
2
12
=
2
9
+
8
9
=
8
15
-
1
3
=
1-
2
11
=
3
16
+
13
16
=
5
7
-
1
2
=
3
4
+
3
8
=
5
7
+5=
5-
3
4
=
答案

5
13
+
6
13
=
11
13
7
8
-
1
8
=
3
4
1
5
-
1
6
=
1
30
7
12
-
2
12
=
5
12
2
9
+
8
9
=
10
9
8
15
-
1
3
=
1
5
1-
2
11
=
9
11
3
16
+
13
16
=1,
5
7
-
1
2
=
3
14
3
4
+
3
8
=
9
8
5
7
+5=5
5
7
5-
3
4
=4
1
4

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