CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
860 = 859 +
150 = 145 +
240 = 239 +
990 = 987 +
940 = 937 +
110 = 108 +
350 = 341 +
950 = 943 +
680 = 677 +
680 = 679 +
940 = 940 +
770 = 763 +
410 = 402 +
850 = 847 +
880 = 875 +
50 = 46 +
200 = 197 +
50 = 48 +
940 = 938 +
20 = 16 +