Dizaines · Série 28

20 problems
1
4 - 3 =
2
9 - 5 =
3
8 - 6 =
4
6 - 2 =
5
9 - 2 =
6
7 - 2 =
7
2 - 1 =
8
8 - 7 =
9
3 - 2 =
10
8 - 2 =
11
6 - 5 =
12
6 - 5 =
13
2 - 1 =
14
5 - 3 =
15
6 - 1 =
16
3 - 2 =
17
2 - 1 =
18
3 - 1 =
19
9 - 5 =
20
6 - 3 =
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