CHRONO

10 s.

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

CHRONO

0 s.
1000 - 790 =
1000 - 450 =
1000 - 860 =
1000 - 320 =
1000 - 630 =
1000 - 220 =
1000 - 250 =
1000 - 230 =
1000 - 340 =
1000 - 490 =
1000 - 380 =
1000 - 120 =
1000 - 910 =
1000 - 670 =
1000 - 350 =
1000 - 140 =
1000 - 390 =
1000 - 950 =
1000 - 830 =
1000 - 160 =