CHRONO

10 s.

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

CHRONO

0 s.
1000 - 920 =
1000 - 390 =
1000 - 960 =
1000 - 280 =
1000 - 330 =
1000 - 440 =
1000 - 970 =
1000 - 900 =
1000 - 750 =
1000 - 680 =
1000 - 690 =
1000 - 220 =
1000 - 420 =
1000 - 460 =
1000 - 470 =
1000 - 510 =
1000 - 270 =
1000 - 880 =
1000 - 170 =
1000 - 110 =