CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
810 = 809 +
440 = 434 +
120 = 119 +
700 = 697 +
950 = 949 +
190 = 182 +
320 = 318 +
920 = 912 +
880 = 877 +
270 = 269 +
450 = 450 +
920 = 913 +
280 = 272 +
390 = 390 +
870 = 870 +
640 = 632 +
790 = 790 +
210 = 206 +
530 = 526 +
320 = 319 +