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Dyscalc
7 + 2
5 + 2
6 + 1
5 + 1
5 + 1
2 + 4
5 + 2
5 + 1
2 + 7
4 + 5
4 + 2
6 + 3
1 + 6
1 + 8
4 + 2
4 + 3
6
7
9
verification off
reset
options