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3-Cm16 2013-2014

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3-Cm16 2013-2014

  1. 1. Calcul mental Les racines carrés, des nombres Série n° 1
  2. 2. Diapositive 1 Trouver le nombre manquant : 2 − ? =3
  3. 3. Diapositive 2 Trouver le nombre manquant :
  4. 4. Diapositive 3 Calculer : 81
  5. 5. Diapositive 4 Calculer : 25 9
  6. 6. Diapositive 5 Calculer : ( 7) 2
  7. 7. FIN
  8. 8. CORRECTION
  9. 9. Diapositive 1 ? =3 2 Donc ? = 3 −
  10. 10. Diapositive 2 2² + 5² = 4 + 25 = 29 Donc ? = 29
  11. 11. Diapositive 3 81 = 9
  12. 12. Diapositive 4 25 5 = 9 3
  13. 13. Diapositive 5 ( 7) = 7 2

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