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Activités mentales 1. Prêt Question 1 Calculez -4 + (-5) x 3.

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Presentation on theme: "Activités mentales 1. Prêt Question 1 Calculez -4 + (-5) x 3."— Presentation transcript:

1 Activités mentales 1

2 Prêt

3 Question 1

4 Calculez -4 + (-5) x 3

5 Question 2

6 Calculez 9 x 8 – 6 x7

7 Question 3

8 (-3) 2

9 Question 4

10 - 5 2

11 Question 5

12 Calculez 10 4

13 Question 6

14 Calculez 1 + 5 3 9

15 Question 7

16 Calculez les 2 de 21 3

17 Question 8

18 Calculez les 4 de 3 3 5

19 Question 9

20 Calculez 4 : 0,5

21 Question 10

22 Calculez 98 x 0,1

23 Correction

24 1) -4 + (-5) x 3 =-4-15 =-19

25 2) 9 x 8 – 6 x7 = 72-42=30

26 3) (-3) 2 = (-3) x (-3) = 9

27 4) -5 2 = - 5 x 5 = - 25

28 5) 10 4 = 10 x 10 x 10 x 10 = 10 000

29 6) 1 + 5 = 3 + 5 =8 3 9 9 9 9

30 7) Calculez les 2 de 21 3 2 x 21 = 42 = 14 3 3

31 8) les 4 de 3 = 4 x 3 = 4 3 5 3 5 5

32 9) 4 : 0,5 = 4 :1 = 4 x 2 = 8 2

33 10) 98 x 0,1= 9,8


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