CHRONO

10 s.

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

CHRONO

0 s.
120 = 30 + 30 +
80 + 30 + 30 =
130 = 20 + 70 +
110 = 20 + 80 +
170 = 60 + 70 +
70 + 20 + 70 =
180 = 30 + 80 +
110 = 40 + 20 +
140 = 30 + 80 +
40 + 10 + 30 =
170 = 80 + 60 +
50 + 20 + 40 =
20 + 50 + 40 =
90 = 40 + 10 +
50 + 40 + 70 =
40 + 80 + 60 =
80 + 90 + 40 =
160 = 30 + 70 +
20 + 70 + 20 =
170 = 80 + 30 +