CHRONO

29 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
540 = 538 +
740 = 734 +
680 = 671 +
410 = 401 +
970 = 965 +
880 = 871 +
790 = 790 +
750 = 741 +
320 = 319 +
460 = 454 +
810 = 809 +
280 = 271 +
580 = 576 +
310 = 308 +
270 = 266 +
30 = 22 +
350 = 341 +
890 = 884 +
640 = 633 +
850 = 842 +