+-tot10(4)

INVULOEFENING

Vul alleopeningen in. Klik op "Controleer".
2 = - 8
4 = + 2
7 = - 1
10 = + 4
0 = - 7
3 = - 6
5 = + 4
5 = - 5
7 = + 3
9 = - 0