CHRONO

2 s.

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

CHRONO

0 s.
220 = 90 + 80 +
20 + 90 + 50 =
220 = 70 + 70 +
180 = 70 + 60 +
40 + 40 + 70 =
90 + 70 + 20 =
110 = 20 + 80 +
60 = 40 + 10 +
140 = 20 + 40 +
140 = 70 + 30 +
180 = 80 + 20 +
80 + 50 + 60 =
70 = 40 + 10 +
50 + 20 + 40 =
80 = 40 + 20 +
10 + 40 + 60 =
60 + 60 + 70 =
30 + 50 + 50 =
70 + 40 + 70 =
140 = 60 + 70 +