11-8+5= 16-7+5= 9-3-2= 13-10= 11–9+5= 16–5+6= 19-3-1= 14-7+6=

11-8+5 = 8 16-7+5 = 14 9-3-2 = 4 13-10 = 3 11–9+5 = 7 16–5+6 = 17 19-3-1 = 15 14-7+6 = 13