CHRONO

10 s.

Réaliser des calculs du type 1000-400, 1000-430.

CHRONO

0 s.
1000 - 260 =
1000 - 850 =
1000 - 670 =
1000 - 140 =
1000 - 380 =
1000 - 420 =
1000 - 960 =
1000 - 350 =
1000 - 510 =
1000 - 300 =
1000 - 530 =
1000 - 210 =
1000 - 600 =
1000 - 690 =
1000 - 100 =
1000 - 680 =
1000 - 920 =
1000 - 280 =
1000 - 170 =
1000 - 480 =