CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
310 = 302 +
720 = 716 +
300 = 293 +
600 = 597 +
410 = 410 +
400 = 392 +
860 = 852 +
170 = 169 +
380 = 379 +
360 = 355 +
490 = 488 +
390 = 383 +
420 = 413 +
940 = 931 +
100 = 100 +
860 = 859 +
60 = 52 +
40 = 31 +
700 = 698 +
350 = 343 +