CHRONO

2 s.

Calculer des compléments à 100 ou 1000.

CHRONO

0 s.
100 - 60 =
100 - 45 =
100 = 20 +
1000 - 450 =
1000 = 900 +
1000 - 900 =
1000 = 250 +
100 - 70 =
1000 = 950 +
1000 = 650 +
100 = 65 +
1000 - 650 =
100 - 15 =
1000 = 400 +
100 - 75 =
1000 = 350 +
100 - 10 =
1000 = 500 +
1000 - 150 =
1000 = 50 +