CHRONO

10 s.

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

CHRONO

0 s.
90 + 90 + 70 =
120 = 20 + 20 +
20 + 70 + 80 =
60 + 20 + 50 =
70 + 60 + 70 =
170 = 60 + 30 +
120 = 60 + 10 +
70 = 30 + 20 +
90 + 40 + 90 =
150 = 50 + 40 +
50 + 60 + 20 =
20 + 60 + 50 =
150 = 10 + 50 +
70 + 70 + 50 =
130 = 50 + 10 +
60 + 60 + 60 =
170 = 70 + 40 +
60 + 60 + 80 =
140 = 40 + 20 +
90 = 30 + 30 +