CHRONO

10 s.

Calculer des compléments à 100 ou 1000.

CHRONO

0 s.
1000 = 600 +
1000 - 450 =
1000 = 650 +
100 = 75 +
1000 - 900 =
100 - 75 =
100 - 70 =
1000 - 750 =
100 = 50 +
1000 - 850 =
100 - 80 =
100 = 55 +
100 - 85 =
100 - 60 =
1000 = 700 +
1000 - 150 =
100 - 10 =
100 - 30 =
100 = 65 +
100 - 65 =