问题 解答题
直接写出得数:
1
3
+
2
3
=
1
2
-
1
4
=
1-
1
8
=
3
5
+
7
5
=
3
4
-0.25=
1
3
+
2
9
=
3-
5
7
=
1
6
-
1
7
+
5
6
=
1-
1
2
-0.5=
12.5×8=
答案

1
3
+
2
3
=1,
1
2
-
1
4
=
1
4
1-
1
8
=
7
8
3
5
+
7
5
=2,
3
4
-0.25=0.5,
1
3
+
2
9
=
5
9
3-
5
7
=2
2
7
1
6
-
1
7
+
5
6
=
6
7
1-
1
2
-0.5=0,
12.5×8=100.

单项选择题
多项选择题