问题 解答题
直接写出得数:
1
3
+
5
12
=
8+
2
5
=
1
2
-
1
3
=
5
7
-
3
7
=
0.5-
1
2
=
10-
2
5
-
3
5
=
1
3
+
2
3
=
1-
1
6
=
4-
2
9
=
4+
6
7
=
答案

1
3
+
5
12
=
3
4
8+
2
5
=8
2
5
1
2
-
1
3
=
1
6
5
7
-
3
7
=
2
7
0.5-
1
2
=0,
10-
2
5
-
3
5
=9,
1
3
+
2
3
=1,
1-
1
6
=
5
6
4-
2
9
=3
7
9
4+
6
7
=4
6
7

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