15 + 6 =
21
11 + 9 =
20
23 + 7 =
30
28 + 5 =
33
38 + 4 =
42
47 + 6 =
53
58 + 7 =
65
59 + 9 =
68
68 + 6 =
74
78 + 9 =
87