Pystysuora · Sarja 15

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