Centaines · Série 1

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