CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
690 = 686 +
1000 = 993 +
730 = 729 +
770 = 764 +
410 = 405 +
680 = 672 +
180 = 172 +
160 = 156 +
480 = 478 +
460 = 453 +
980 = 973 +
190 = 185 +
840 = 839 +
70 = 68 +
250 = 250 +
780 = 773 +
800 = 800 +
920 = 916 +
480 = 475 +
490 = 486 +