Tabla del -9

-9 X 1 = -9
-9 X 2 = -18
-9 X 3 = -27
-9 X 4 = -36
-9 X 5 = -45
-9 X 6 = -54
-9 X 7 = -63
-9 X 8 = -72
-9 X 9 = -81
-9 X 10 = -90