Calcul mental “Les nombres relatifs”

Série n°5

9 + … = 7Diapositive 1Diapositive 1

5 - 10Diapositive 2Diapositive 2

- 4 x 9Diapositive 3Diapositive 3

-21 : (-2)Diapositive 4Diapositive 4

-25 x (-9) x (-4)Diapositive 5Diapositive 5

Diapositive 6Diapositive 6

-6 x (-7)

Diapositive 7Diapositive 7

-18 : 5

Diapositive 8Diapositive 8

-12 x (-0,5)

Diapositive 9Diapositive 9

?:(- 3)= 9

Diapositive 10Diapositive 10

? x 5 = - 40

FIN

CORRECTION

- 2 car

7 - 9 = - 2

Diapositive 1Diapositive 1

5 - 10 = -5Diapositive 2Diapositive 2

- 4 x 9 = - 36Diapositive 3Diapositive 3

-21 : (-2) = 10,5

Diapositive 4Diapositive 4

-25 x (-9) x (-4)

= -900

Diapositive 5Diapositive 5

-6 x (-7) = 42Diapositive 6Diapositive 6

-18 : 5 = -3,6Diapositive 7Diapositive 7

-12 x (-0,5) = 6

Diapositive 8Diapositive 8

-27:(-3)=9Diapositive 9Diapositive 9

- 8 x 5 = - 40Diapositive 10Diapositive 10