Row 1
1 + 3 =
4
2 + 4 =
6
3 + 5 =
8
4 + 6 =
10
3 + 5 =
8
4 + 6 =
10
5 + 7 =
12
8 + 10 =
18
6 + 8 =
14
4 + 9 =
13
8 + 19 =
27
11 + 12 =
23
20 + 11 =
31
14 + 17 =
31
15 + 15 =
30
14 + 16 =
30
13 + 15 =
28
12 + 16 =
28
16 + 13 =
29
18 + 19 =
37
17 + 19 =
36
16 + 18 =
34
19 + 21 =
40
18 + 20 =
38
12 + 14 =
26