CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
500 = 500 +
300 = 293 +
840 = 835 +
340 = 338 +
810 = 802 +
280 = 280 +
470 = 467 +
780 = 775 +
50 = 46 +
860 = 860 +
730 = 726 +
510 = 507 +
160 = 158 +
320 = 313 +
930 = 922 +
320 = 316 +
230 = 225 +
500 = 493 +
550 = 544 +
320 = 319 +