Puuttuvat yhteenlaskettavat alle 20 · Sarja 25

20 problems
1
70 + 16 =
2
57 + 21 =
3
43 + 24 =
4
13 + 61 =
5
61 + 20 =
6
20 + 78 =
7
20 + 32 =
8
43 + 22 =
9
47 + 10 =
10
45 + 52 =
11
66 + 11 =
12
21 + 12 =
13
74 + 20 =
14
76 + 23 =
15
58 + 31 =
16
23 + 62 =
17
14 + 44 =
18
27 + 50 =
19
33 + 50 =
20
17 + 71 =
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