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# 5-Cm27 11-12

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### 5-Cm27 11-12

1. 1. Calcul mental “Les opérations avec des fractions” Série n°2
2. 2. Diapositive 1Calculer : 9 2 − 5 5
3. 3. Diapositive 2Calculer : 3 4 + 5 10
4. 4. Diapositive 3Calculer : 2 10 × 7 7
5. 5. 2 de 20 Diapositive 4Calculer : 5
6. 6. Diapositive 5Calculer 10% de 150
7. 7. FIN
8. 8. CORRECTION
9. 9. 9 2 7Diapositive 1 − = 5 5 5
10. 10. Diapositive 23 4 +5 10 6 4 10= + = =1 10 10 10
11. 11. Diapositive 32 10 2 ×10 20 × = =7 7 7 × 7 49
12. 12. 2 Diapositive 4Calculer : de 20 5 2 40 × 20 = =8 5 5
13. 13. Diapositive 5Calculer 10% de 150 10 1500 ×150 = = 15 100 100 15010 × = 10 ×1,5 = 15 100