Addendi mancanti fino a 20 · Set 43

20 problems
1
22 + 64 =
2
43 + 24 =
3
12 + 67 =
4
14 + 81 =
5
63 + 34 =
6
31 + 45 =
7
53 + 31 =
8
17 + 10 =
9
22 + 72 =
10
36 + 10 =
11
22 + 61 =
12
18 + 21 =
13
35 + 30 =
14
87 + 10 =
15
14 + 23 =
16
41 + 58 =
17
30 + 14 =
18
56 + 10 =
19
64 + 20 =
20
21 + 17 =
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