问题 解答题
直接写出得数.
3
4
+
1
4
=
5
6
-
1
6
=
2+
4
9
=
1-
5
9
=
1
5
+
1
4
=
1
2
-
1
3
=
2
3
+
1
6
=
4
5
-
3
5
=
1+
3
4
=
1
4
+
1
2
=
1+
1
3
=
2
3
-
1
6
=
答案

3
4
+
1
4
=1,
5
6
-
1
6
=
2
3
2+
4
9
=2
4
9
1-
5
9
=
4
9
1
5
+
1
4
=
9
20
1
2
-
1
3
=
1
6
2
3
+
1
6
=
5
6
4
5
-
3
5
=
1
5
1+
3
4
=1
3
4
1
4
+
1
2
=
3
4
1+
1
3
=1
1
3
2
3
-
1
6
=
1
2

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