CHRONO

10 s.

Calculer des compléments à 100 ou 1000.

CHRONO

0 s.
1000 - 750 =
100 - 95 =
100 = 50 +
100 - 65 =
100 - 15 =
1000 = 750 +
100 - 30 =
100 = 15 +
100 - 90 =
1000 = 900 +
1000 = 150 +
1000 = 650 +
1000 - 800 =
100 = 95 +
1000 - 700 =
1000 - 200 =
100 = 35 +
100 - 50 =
1000 - 550 =
1000 = 550 +