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4-Cm28 14-15

  1. Calcul mental n°28 “Des proportions
  2. Calculer lesCalculer les deux tiersdeux tiers de 90.de 90. Diapositive 1Diapositive 1
  3. CalculerCalculer 5% de 70.5% de 70. Diapositive 2Diapositive 2
  4. Compléter :Compléter : Diapositive 3Diapositive 3 = 9 ...% 25
  5. Compléter :Compléter : Diapositive 4Diapositive 4 = 3 21 7 ...
  6. Compléter :Compléter : Diapositive 5Diapositive 5 = 20 ... 5 7
  7. FIN
  8. CORRECTION
  9. Diapositive 1Diapositive 1 × = × = 2 90 2 30 3 60
  10. Diapositive 2Diapositive 2 × = × = = 5 5% 70 70 100 350 100 3,5
  11. Diapositive 3Diapositive 3 × = × = = 9 9 4 25 25 4 36 100 36%
  12. Diapositive 4Diapositive 4 = 3 21 7 49
  13. Diapositive 5Diapositive 5 = = 20 4 5 28 7
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