Addendi mancanti fino a 20 · Set 68

20 problems
1
82 + 10 =
2
11 + 64 =
3
40 + 59 =
4
70 + 16 =
5
23 + 71 =
6
13 + 74 =
7
60 + 38 =
8
71 + 25 =
9
20 + 62 =
10
20 + 54 =
11
21 + 63 =
12
11 + 81 =
13
52 + 30 =
14
72 + 11 =
15
18 + 51 =
16
53 + 32 =
17
57 + 40 =
18
33 + 22 =
19
27 + 11 =
20
46 + 52 =
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