-12 + 24
-5 -9 -30 -10
-101 + 90
-15 - 28
+24-36
+9 + 5 - 20 -6 + 38
+9 + 34
+4 - 7 +20 -16
-25 - 10 + 5 + 5
+10 -10
-43
+12
0
+26
-54
+43
-25
-11
+1
-12