6
+
____________________
=
16
____________________
-
15
=
5
6
+
____________________
=
19
____________________
+
15
=
18
5
+
____________________
=
13
____________________
-
11
=
4
4
+
____________________
=
17
____________________
+
11
=
15
20
-
____________________
=
13
____________________
-
9
=
5
