CHRONO

41 s.

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

CHRONO

0 s.
1000 - 610 =
1000 - 160 =
1000 - 120 =
1000 - 240 =
1000 - 790 =
1000 - 300 =
1000 - 350 =
1000 - 910 =
1000 - 770 =
1000 - 150 =
1000 - 900 =
1000 - 340 =
1000 - 740 =
1000 - 220 =
1000 - 320 =
1000 - 830 =
1000 - 750 =
1000 - 880 =
1000 - 490 =
1000 - 760 =