Calcul Mental
08/06/2025
MiCetF
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10 s.
Calculer de 20 en 20, de 50 en 50.
0 s.
256 + 50 =
429 = 20 +
337 + 20 =
213 = 50 +
358 = 20 +
243 + 50 =
171 = 50 +
402 = 50 +
274 + 50 =
311 + 50 =
339 = 50 +
367 + 20 =
192 = 20 +
445 = 20 +
311 + 20 =
280 + 20 =
140 + 20 =
152 + 20 =
228 = 20 +
176 = 50 +
CORRIGER
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