Mathématiques

Question

exercice math calcul
exercice math calcul

1 Réponse

  • a = - 4

    b = 4

    c = - 2

    d = - 10

    e = 2

    f =  7

    A = 4 - ( - 4 ) + 4 - ( - 2 )

      = 4 + 4 + 4 + 2 = 14

    B = - 9 + 4 - 2 - 7  - 2

      = - 20 + 4 = - 16

    C =  13 - 7 - 4 + 4 + 2 - 4 - 10

      = 15 - 21 = - 6

    D = 9 - ( 4 + 4 ) + ( - 4 + 4 ) - ( - 2 - 2 )

      = 9 - 8 + 0 - 4

     = - 3

    E = - 15 + ( 7 - 4 ) - 5 - ( - 2 + 2 ) + ( - 10 - 13 )

      = - 15  + 3 - 5 - 0  -13

      = - 33 + 3 = - 30

    F = 19 - ( 13 - 4 ) - ( 5 - 2 - 4 + 2 ) + ( - 7 + 8 )

      = 19 - 9 -  1 + 1

     = 10