题目内容

在横线里填上“+”或“-”.
1
8
______
1
4
=
3
8
3
5
______
3
10
=
3
10
5
6
______
3
4
=
1
12
2
5
______
1
3
=
11
15
2
7
______
1
2
=
11
14
5
8
______
1
6
=
11
24
1
8
+
1
4
=
3
8
3
5
-
3
10
=
3
10
5
6
-
3
4
=
1
12

2
5
+
1
3
=
11
15
2
7
+
1
2
=
11
14
5
8
+
1
6
=
11
24

故答案为:+,-,-,+,+,+.
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