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    Cm1 Cm1 Presentation Transcript

    • Calcul mental Vous avez 8 secondes pour calculer puis mettre votre réponse sur votre feuille. Si vous ne trouvez pas la réponse, mettre une croix à la place.
    •  
    •  
      • 6 × 7
      • 8 × 3
      • 5 × 4
    • 9 × 3
    • 7 × 7
      • 8 × 9
      • 10 × 6
      • 3 × 4
      • 8 × 5
      • 1,5 × 2
    • Correction 6 × 7 = 42 8 × 3 = 24 5 × 4 = 20 9 × 3 = 27 7 × 7 = 49 8 × 9 = 72 10 × 6 = 60 3 × 4 = 12 8 × 5 = 40 1,5 × 2 = 3