CHRONO

10 s.

Calculer des compléments à 100 ou 1000.

CHRONO

0 s.
1000 - 750 =
100 - 70 =
1000 - 550 =
1000 = 700 +
100 = 40 +
1000 - 450 =
100 - 95 =
1000 = 550 +
100 - 10 =
1000 = 950 +
1000 - 900 =
100 = 65 +
1000 = 500 +
100 - 65 =
1000 = 600 +
100 = 95 +
100 - 5 =
100 = 60 +
1000 = 50 +
100 = 80 +