Centinaia · Set 45

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