CHRONO

-INF s.

Ajouter ou soustraire des dizaines entières et compléments.

CHRONO

0 s.
92 = 40 +
91 = 30 +
79 = 20 +
41 + 10 =
14 + 40 =
42 + 10 =
11 + 10 =
20 + 43 =
69 - 20 =
36 + 50 =
46 - 40 =
21 + 70 =
78 - 10 =
61 = 40 +
28 + 50 =
77 = 60 +
90 + 17 =
49 + 40 =
67 + 10 =
57 - 20 =