CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
70 = 69 +
40 = 34 +
470 = 467 +
920 = 911 +
340 = 337 +
880 = 872 +
50 = 44 +
670 = 668 +
860 = 855 +
560 = 559 +
730 = 724 +
190 = 182 +
290 = 287 +
950 = 941 +
90 = 88 +
400 = 394 +
180 = 172 +
700 = 695 +
520 = 515 +
380 = 376 +