CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
460 = 451 +
950 = 945 +
160 = 160 +
30 = 27 +
670 = 662 +
400 = 399 +
640 = 633 +
580 = 580 +
450 = 442 +
710 = 702 +
700 = 696 +
240 = 235 +
810 = 809 +
530 = 528 +
120 = 112 +
860 = 855 +
820 = 818 +
80 = 71 +
690 = 690 +
780 = 778 +