CHRONO

18 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
660 = 657 +
810 = 804 +
540 = 532 +
1000 = 998 +
170 = 164 +
690 = 686 +
560 = 558 +
160 = 151 +
110 = 104 +
200 = 192 +
670 = 665 +
750 = 743 +
30 = 24 +
990 = 985 +
590 = 584 +
310 = 307 +
230 = 224 +
980 = 977 +
350 = 345 +
410 = 408 +