CHRONO

10 s.

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

CHRONO

0 s.
1000 - 800 =
1000 - 140 =
1000 - 820 =
1000 - 160 =
1000 - 110 =
1000 - 120 =
1000 - 190 =
1000 - 690 =
1000 - 380 =
1000 - 410 =
1000 - 580 =
1000 - 890 =
1000 - 270 =
1000 - 910 =
1000 - 330 =
1000 - 880 =
1000 - 980 =
1000 - 430 =
1000 - 230 =
1000 - 970 =