(+5) X ( - 2) + ( -9) =
-18
-19
-10
is ( - 9) - ( + 6) X (-13) = +71
(- 15) ÷ (+ 5) - ( 12) =
-9
-8
-7
-15
+12
(-7) + ( - 27) ÷ (-9) X ( - 8) =
+21
+14
-30
+17
-13
-31