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2

          

          3  (-9) ÷ (-3)  =                   

            -8 ÷ 4x 2 =-8 : 8

                           = -1

           (-1) x27 ÷ 9 x(-3)= -27 : (-27)

                                                                = 1                                                    

 

3

(-5)×(+7) = - 35

(-24)÷(+8) = - 3

-1000÷100 = - 10

exercice calcul  =    1

exercice calcul   -  19

calcul  =    - 4

exercice calcul   = 5

exercice calcul  =  0

 exercice calcul  = 2

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