CHRONO

10 s.

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

CHRONO

0 s.
1000 - 470 =
1000 - 620 =
1000 - 110 =
1000 - 140 =
1000 - 740 =
1000 - 650 =
1000 - 600 =
1000 - 680 =
1000 - 720 =
1000 - 420 =
1000 - 630 =
1000 - 970 =
1000 - 640 =
1000 - 660 =
1000 - 250 =
1000 - 950 =
1000 - 500 =
1000 - 330 =
1000 - 350 =
1000 - 920 =