CHRONO

-INF s.

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

CHRONO

0 s.
500 + 20 + 30 =
40 + 7000 + 7000 =
50 + 400 + 70 =
500 + 80 + 700 =
100 + 40 + 700 =
9000 + 70 + 50 =
1000 + 900 + 10 =
70 + 300 + 5000 =
10 + 6000 + 200 =
10 + 10 + 20 =
30 + 800 + 500 =
50 + 4000 + 50 =
70 + 50 + 200 =
30 + 9000 + 20 =
4000 + 900 + 3000 =
7000 + 70 + 900 =
30 + 90 + 6000 =
7000 + 6000 + 2000 =
400 + 200 + 80 =
20 + 90 + 10 =