CHRONO

10 s.

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

CHRONO

0 s.
1000 - 750 =
1000 - 360 =
1000 - 150 =
1000 - 860 =
1000 - 180 =
1000 - 120 =
1000 - 770 =
1000 - 510 =
1000 - 920 =
1000 - 760 =
1000 - 350 =
1000 - 640 =
1000 - 950 =
1000 - 570 =
1000 - 210 =
1000 - 420 =
1000 - 380 =
1000 - 100 =
1000 - 470 =
1000 - 620 =