Addendi mancanti fino a 20 · Set 99

20 problems
1
50 + 33 =
2
74 + 15 =
3
64 + 31 =
4
11 + 82 =
5
40 + 48 =
6
12 + 76 =
7
37 + 21 =
8
62 + 12 =
9
61 + 38 =
10
18 + 11 =
11
45 + 10 =
12
41 + 12 =
13
46 + 53 =
14
32 + 15 =
15
22 + 51 =
16
25 + 11 =
17
43 + 22 =
18
23 + 53 =
19
22 + 66 =
20
22 + 74 =
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