65 + 9 + 5 = (65 + 5) + 9 = 70 + 9 = 79
76 + 8 + 4 = (76 + 4) + 8 = 80 + 8 = 88
36 + 8 + 12 = 36 + (8 + 12) = 36 + 20 = 56
47 + 6 + 24 = 47 + (6 + 24) = 47 + 30 = 77
20 + 27 + 3 + 30 = (20 + 30) + (27 + 3) = 50 + 30 = 80
50 + 19 + 1 + 20 = (50 + 20) + (19 + 1) = 70 + 20 = 90
65 + 9 + 5 = (65 + 5) + 9 = 70 + 9 = 79
76 + 8 + 4 = (76 + 4) + 8 = 80 + 8 = 88
36 + 8 + 12 = 36 + (8 + 12) = 36 + 20 = 56
47 + 6 + 24 = 47 + (6 + 24) = 47 + 30 = 77
20 + 27 + 3 + 30 = (20 + 30) + (27 + 3) = 50 + 30 = 80
50 + 19 + 1 + 20 = (50 + 20) + (19 + 1) = 70 + 20 = 90