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Activités mentales 1. Prêt Question 1 Calculez -14 + 4x 9.

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Presentation on theme: "Activités mentales 1. Prêt Question 1 Calculez -14 + 4x 9."— Presentation transcript:

1 Activités mentales 1

2 Prêt

3 Question 1

4 Calculez x 9

5 Question 2

6 Calculez 26 – (-6) x 7

7 Question 3

8 -5 3

9 Question 4

10

11 Question 5

12 Calculez (-1) 4

13 Question 6

14 Calculez (-1-5) 2

15 Question 7

16 Calculez (-81): (-9)

17 Question 8

18 (-2,7):0,5

19 Question 9

20 0,68:0,1

21 Question 10

22 Calculez x 2 pour x = 10

23 Correction

24 1) x 9 = =22

25 2) 26 – (-6) x 7 = =68

26 3) – 5 3 =- 5 x 5x 5 =-125

27 4) = x 3x 3= = 37

28 5) (-1) 4 =(-1) x (-1) x (-1) (- 1) =1

29 6)(-1-5)²=(-6)² =(-6) x (-6) = 36

30 7) (-81) : (-9) =81:9=9

31 8) (-2,7) : 0,5 = - 2,7 x 2=-5,4

32 9) 0,68 : 0,1 = 0,68 x 10 = 6,8

33 10) x 2 pour x = 10 10² = 10 x 10 = 100


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