-
12
-
____________________
=
-
24
-
150
+
____________________
=
75
7
-
8
=
-
1
5
-
6
+
____________________
=
5
-
2
+
____________________
-
5
=
-
2
-
6
+
____________________
-
1
=
-
2
-
125
+
____________________
-
50
=
-
150
-
530
+
50
+
____________________
=
-
51
0