CHRONO

-INF s.

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

CHRONO

0 s.
300 + 90 + 70 =
200 + 400 + 600 =
60 + 500 + 20 =
9000 + 2000 + 6000 =
3000 + 1000 + 40 =
400 + 30 + 20 =
90 + 800 + 50 =
4000 + 70 + 60 =
800 + 7000 + 30 =
20 + 70 + 400 =
200 + 7000 + 9000 =
800 + 2000 + 500 =
40 + 1000 + 70 =
4000 + 90 + 800 =
1000 + 600 + 300 =
700 + 7000 + 8000 =
2000 + 80 + 80 =
10 + 3000 + 80 =
100 + 3000 + 8000 =
7000 + 50 + 400 =