NIVEAU 2
Mon carnet de calcul mental
+ - × ÷
NIVEAU 2
Mon carnet de calcul mental
+ - × ÷
NIVEAU 2
Mon carnet de calcul mental
+ - × ÷ le bl og du ca nc re .c om le bl og du ca nc re .c om le bl og du ca nc re .c om
Utiliser les décompositions additives de 15 10 = 15 + 5 = 15 + 7 = 15 + 6 = 15 + 9 = 15 + 8 -15 5 = -15 8 = -15 6 = -15 9 = -15 7 = / 10
Utiliser les décompositions additives de 15 10 = 15 + 5 = 15 + 7 = 15 + 6 = 15 + 9 = 15 + 8 -15 5 = -15 8 = -15 6 = -15 9 = -15 7 = / 10
Utiliser les décompositions additives de 15 10 = 15 + 5 = 15 + 7 = 15 + 6 = 15 + 9 = 15 + 8 -15 5 = -15 8 = -15 6 = -15 9 = -15 7 = / 10
Utiliser les décompositions additives de 16, 17 et 18 11 = 16 + 8 = 16 + 7 = 17 + 8 = 17 + 9 = 18 + 9 -16 8 = -16 7 = -17 8 = -17 9 = -18 9 = / 10
Utiliser les décompositions additives de 16, 17 et 18 11 = 16 + 8 = 16 + 7 = 17 + 8 = 17 + 9 = 18 + 9 -16 8 = -16 7 = -17 8 = -17 9 = -18 9 = / 10
Utiliser les décompositions additives de 16, 17 et 18 11 = 16 + 8 = 16 + 7 = 17 + 8 = 17 + 9 = 18 + 9 -16 8 = -16 7 = -17 8 = -17 9 = -18 9 = / 10
Retirer 0, 1, 2, 3 et 4 12 -15 0 = -10 1 = -30 1 = -10 2 = -11 2 = -30 2 = -13 3 = -21 3 = -53 4 = -52 4 = / 10 Retirer 0, 1, 2, 3 et 4 12 -15 0 = -10 1 = -30 1 = -10 2 = -11 2 = -30 2 = -13 3 = -21 3 = -53 4 = -52 4 = / 10 Retirer 0, 1, 2, 3 et 4 12 -15 0 = -10 1 = -30 1 = -10 2 = -11 2 = -30 2 = -13 3 = -21 3 = -53 4 = -52 4 = / 10
Retirer 5 et 6 13 -15 5 = -14 5 = -30 5 = -34 5 = -43 5 = -20 6 = -36 6 = -35 6 = -44 6 = -63 6 = / 10 Retirer 5 et 6 13 -15 5 = -14 5 = -30 5 = -34 5 = -43 5 = -20 6 = -36 6 = -35 6 = -44 6 = -63 6 = / 10 Retirer 5 et 6 13 -15 5 = -14 5 = -30 5 = -34 5 = -43 5 = -20 6 = -36 6 = -35 6 = -44 6 = -63 6 = / 10
Arrondir un nombre à la dizaine supérieure 14 8 12 37 43 25 78 62 86 59 89 / 10
Arrondir un nombre à la dizaine supérieure 14 8 12 37 43 25 78 62 86 59 89 / 10
Arrondir un nombre à la dizaine supérieure 14 8 12 37 43 25 78 62 86 59 89 / 10
Retirer 7 et 8 15 -17 7 = -16 7 = -30 7 = -35 7 = -54 7 = -20 8 = -36 8 = -35 8 = -44 8 = -63 8 = / 10 Retirer 7 et 8 15 -17 7 = -16 7 = -30 7 = -35 7 = -54 7 = -20 8 = -36 8 = -35 8 = -44 8 = -63 8 = / 10 Retirer 7 et 8 15 -17 7 = -16 7 = -30 7 = -35 7 = -54 7 = -20 8 = -36 8 = -35 8 = -44 8 = -63 8 = / 10
Ajouter 10 16 + 4 10 = + 24 10 = + 6 10 = + 46 10 = + 56 10 = + 68 10 = + 73 10 = + 83 10 = + 78 10 = + 88 10 = / 10 Ajouter 10 16 + 4 10 = + 24 10 = + 6 10 = + 46 10 = + 56 10 = + 68 10 = + 73 10 = + 83 10 = + 78 10 = + 88 10 = / 10 Ajouter 10 16 + 4 10 = + 24 10 = + 6 10 = + 46 10 = + 56 10 = + 68 10 = + 73 10 = + 83 10 = + 78 10 = + 88 10 = / 10
Ajouter 9 17 + 2 9 = + 19 9 = + 83 9 = + 34 9 = + 62 9 = + 82 9 = + 89 9 = + 23 9 = + 63 9 = + 35 9 = / 10 Ajouter 9 17 + 2 9 = + 19 9 = + 83 9 = + 34 9 = + 62 9 = + 82 9 = + 89 9 = + 23 9 = + 63 9 = + 35 9 = / 10 Ajouter 9 17 + 2 9 = + 19 9 = + 83 9 = + 34 9 = + 62 9 = + 82 9 = + 89 9 = + 23 9 = + 63 9 = + 35 9 = / 10
Retirer 10 18 -14 10 = -24 10 = -56 10 = -42 10 = -37 10 = -68 10 = -93 10 = -54 10 = -78 10 = -99 10 = / 10 Retirer 10 18 -14 10 = -24 10 = -56 10 = -42 10 = -37 10 = -68 10 = -93 10 = -54 10 = -78 10 = -99 10 = / 10 Retirer 10 18 -14 10 = -24 10 = -56 10 = -42 10 = -37 10 = -68 10 = -93 10 = -54 10 = -78 10 = -99 10 = / 10