CHRONO

64 s.

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

CHRONO

0 s.
620 - 8 =
543 - 9 =
764 + 9 =
77 - 8 =
152 - 11 =
269 + 9 =
944 + 9 =
877 + 9 =
257 - 8 =
906 - 9 =
490 + 9 =
101 - 9 =
955 - 11 =
567 - 12 =
512 - 9 =
486 + 12 =
229 - 8 =
133 + 12 =
595 - 12 =
94 + 9 =