CHRONO

10 s.

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

CHRONO

0 s.
70 + 70 + 20 =
170 = 70 + 20 +
90 + 20 + 90 =
60 + 70 + 80 =
170 = 40 + 60 +
140 = 60 + 70 +
40 + 70 + 70 =
170 = 20 + 60 +
220 = 80 + 50 +
120 = 90 + 10 +
90 + 70 + 80 =
150 = 40 + 80 +
30 + 30 + 30 =
80 + 90 + 10 =
90 = 20 + 50 +
40 + 20 + 20 =
120 = 20 + 10 +
50 + 50 + 80 =
130 = 90 + 30 +
180 = 10 + 90 +