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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 11

Sans calculatrice

1. Ecris en notation scientifique `0,000'625`

2. `a \cdot a \cdot a =`

3. Aire de ce triangle :

4. `6x + \frac{6x}{6} =`

5. Sur un plan au 1:250, une dimension de la chambre fait 2 cm.
Quelle est sa dimension réelle ?

6. `\frac{5}{6} + \frac{2}{3} =`


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Avec calculatrice

7. `(-18)^4=`

8. `4sqrt(20736)=`

9. `(-0,9^2)^3=`

10. A l'épicerie, tu achètes 0,6 kg de pommes à 4,85 frs le kg.
Tu paies avec 10 frs. Combien te rend–on ?

11. `3,2 \cdot 10^5 \cdot 2,5 \cdot 10^5 =`

12. Volume d'un cylindre de 3 cm de rayon et 4,5 cm de hauteur (`\pi = 3`)


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Sans calculatrice

13. `- \frac{27}{9} \cdot (\frac{4}{5} - \frac{5}{4}) =`

14. Ecris en notation en notation décimale : `1,232\cdot10^-3`

15. Périmètre d'un triangle équilatéral de côté c ?

16. Volume de ce solide :

17. `(-2x)^2=`

18. Calcule la valeur de l'expression `-2x+1` si `x=3`


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Bilan

Sans calculatrice

19. Ecris en notation scientifique `0,000'205`

20. `-\frac{5}{6}\cdot (\frac{2}{3}-\frac{3}{5})`

21. Si je veux trouver l’ensemble des points à égale
distance de deux droites sécantes, je dois tracer une ...

22. `3x - \frac{x}{2} =`

23. `(-3xy)^2`

24. `-5x\cdot 4xy `


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