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Published byDerek Mathews Modified about 1 year ago

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Activités mentales 1

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Prêt

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Question 1

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Calculez x 9

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Question 2

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Calculez 26 – (-6) x 7

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Question 3

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-5 3

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Question 4

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Question 5

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Calculez (-1) 4

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Question 6

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Calculez (-1-5) 2

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Question 7

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Calculez (-81): (-9)

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Question 8

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(-2,7):0,5

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Question 9

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0,68:0,1

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Question 10

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Calculez x 2 pour x = 10

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Correction

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1) x 9 = =22

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2) 26 – (-6) x 7 = =68

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3) – 5 3 =- 5 x 5x 5 =-125

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4) = x 3x 3= = 37

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

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6)(-1-5)²=(-6)² =(-6) x (-6) = 36

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

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

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

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

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