Dizaines · Série 26

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