CHRONO

10 s.

Calculer des compléments à la dizaine supérieure.

CHRONO

0 s.
870 = 864 +
180 = 173 +
60 = 58 +
130 = 127 +
370 = 361 +
280 = 279 +
190 = 188 +
530 = 523 +
240 = 233 +
70 = 66 +
500 = 494 +
70 = 68 +
270 = 269 +
500 = 499 +
730 = 728 +
590 = 590 +
480 = 475 +
360 = 359 +
330 = 325 +
980 = 975 +