题目内容

直接写出得数.
1
4
+
3
4
=
5
6
-
1
6
=
2
5
+
9
10
=
3
20
-
1
50
=
10-
4
7
-
3
7
=
2
3
-
2
3
=
3+
1
15
=
1
1
6
+
1
3
=
5
7
+
11
12
+
2
7
1
4
+
3
4
=1
5
6
-
1
6
=
2
3
2
5
+
9
10
=
13
10
3
20
-
1
50
=
13
100
10-
4
7
-
3
7
=9
2
3
-
2
3
=0
3+
1
15
=3
1
15
1
1
6
+
1
3
=1
1
2
5
7
+
11
12
+
2
7
=1
11
12
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