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Exercices rituels

Mathématiques 11CO

Conventions d'écriture pour les réponses :

Puissance : 5^3 Fraction : 1/2 Nombre relatif : -10 ou 10 Expression littérale : 2x ou -5x ou 3x^2
Notation scientifique, ex : 1,44x10^3 Si problème d'aire ou volume : réponse sans unité Nombre décimaux, ex : 1,44


Serie 8

Avec calculatrice

1. `sqrt(12544)=`

2. `3sqrt(3375)=`

3. `-3.4^2 =`

4. `-1.37-18.2\cdot(1.4-3.35) =`

5. Les Granges - La Baume : 1550 m en réalité.
Quelle distance sur une carte au 1:25'000 ?

6. `\frac{5}{7} - \frac{4}{13} =`


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Sans calculatrice

7. `105 - 63:7-28 =`

8. `\frac{4}{3} \cdot \frac{3}{5} - \frac{11}{10} =`

9. `3sqrt(64000)=`

10. Les `\frac{3}{5}` de 200 =

11. `2x^2 - 2x - 3 - x^2 = `

12. Ecris en notation scientifique : `0,0000054`


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Sans calculatrice

13. `652 - (26\cdot2)+(-37)=`

14. `(-\frac{3}{2})^3 =`

15. Ecris en notation scientifique : `475000` =

16. `sqrt(36) + sqrt(100) =`

17. `2x+2x-4 =`

18. `(-x)\cdot(-x)\cdot(-x)\cdot(-x)\cdot(-x) =`


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Bilan

Sans calculatrice

19. `-27+(26-13)\cdot2 =`

20. `-2^4 =`

21. Les `\frac{2}{9}` de 900 ?

22. `\frac{1}{3} \cdot \frac{1}{2} =`

23. `(a^0\cdot a^3)^3 =`

24. On fait un rabais de 15 CHF sur un pantalon qui coûte normalement 50 CHF.
Quel est le pourcentage accordé ?


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