CHRONO

10 s.

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

CHRONO

0 s.
100 + 3000 + 3000 =
10 + 5000 + 900 =
400 + 5000 + 300 =
80 + 3000 + 90 =
50 + 40 + 80 =
400 + 1000 + 300 =
300 + 500 + 3000 =
3000 + 50 + 5000 =
4000 + 1000 + 600 =
700 + 90 + 90 =
600 + 100 + 40 =
30 + 10 + 8000 =
50 + 4000 + 4000 =
500 + 400 + 30 =
7000 + 6000 + 600 =
90 + 10 + 8000 =
10 + 500 + 600 =
800 + 100 + 200 =
2000 + 9000 + 7000 =
3000 + 200 + 90 =