CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
370 = 370 +
720 = 718 +
440 = 432 +
350 = 350 +
310 = 306 +
920 = 920 +
130 = 125 +
450 = 449 +
210 = 204 +
790 = 783 +
380 = 373 +
670 = 664 +
610 = 602 +
680 = 679 +
350 = 341 +
170 = 165 +
880 = 877 +
200 = 191 +
480 = 472 +
140 = 138 +