CHRONO

-INF s.

Ajouter et retrancher des nombres comme 8, 9, 11, 12.

CHRONO

0 s.
774 + 9 =
218 + 9 =
25 - 11 =
714 - 9 =
297 + 12 =
293 + 11 =
495 + 11 =
604 - 11 =
762 - 8 =
916 - 8 =
401 + 11 =
407 + 11 =
729 + 11 =
278 + 8 =
201 + 12 =
738 - 11 =
138 - 12 =
957 + 9 =
411 + 8 =
669 + 9 =