CHRONO

-INF s.

Calculer sur des nombres entiers de dizaines, de centaines ou de milliers.

CHRONO

0 s.
500 + 90 + 90 =
6000 + 80 + 7000 =
80 + 10 + 90 =
80 + 400 + 900 =
20 + 7000 + 9000 =
900 + 90 + 30 =
9000 + 60 + 20 =
100 + 1000 + 50 =
400 + 70 + 300 =
90 + 6000 + 100 =
60 + 300 + 700 =
1000 + 100 + 1000 =
20 + 30 + 400 =
1000 + 40 + 200 =
400 + 5000 + 10 =
800 + 500 + 7000 =
10 + 60 + 100 =
5000 + 5000 + 8000 =
40 + 50 + 40 =
600 + 80 + 60 =