CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
870 = 864 +
480 = 476 +
300 = 293 +
670 = 668 +
860 = 855 +
580 = 577 +
610 = 604 +
970 = 969 +
760 = 759 +
480 = 472 +
430 = 424 +
40 = 32 +
480 = 475 +
920 = 916 +
50 = 46 +
930 = 921 +
650 = 642 +
790 = 781 +
790 = 782 +
940 = 937 +