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5 + 7 = ?
12
8 + 7 = ?
15
11 + 9 = ?
20
6 + 12 = ?
18
5 + 7 = ?
12
8 + 7 = ?
15
11 + 9 = ?
20
6 + 12 = ?
18
13 + 12 = ?
25
9 + 8 = ?
17
15 + 8 = ?
23
19 + 12 = ?
31
7 + 9 = ?
16
14 + 15 = ?
29