Calcul Mental
17/07/2026
MiCetF
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10 s.
Compléments à la dizaine, centaine ou au millier supérieur.
0 s.
70 = 64 +
50 = 41 +
30 = 27 +
90 = 81 +
1000 = 970 +
200 = 160 +
1000 = 980 +
3000 = 2500 +
1000 = 930 +
4000 = 3300 +
2000 = 1800 +
400 = 350 +
800 = 740 +
900 = 870 +
900 = 840 +
800 = 750 +
10000 = 9100 +
90 = 85 +
30 = 21 +
40 = 36 +
CORRIGER
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