CHRONO

10 s.

Connaître la table d'addition (addition de 3 nombres).

CHRONO

0 s.
9 + 2 + 4 =
20 = 9 + 5 +
8 + 2 + 9 =
3 + 5 + 2 =
16 = 8 + 1 +
8 + 3 + 2 =
13 = 7 + 4 +
19 = 9 + 9 +
27 = 9 + 9 +
6 + 2 + 4 =
6 = 1 + 3 +
17 = 9 + 7 +
18 = 2 + 7 +
4 + 5 + 6 =
18 = 9 + 6 +
8 = 2 + 1 +
21 = 4 + 8 +
15 = 1 + 6 +
17 = 8 + 7 +
8 + 1 + 2 =