Mathématiques

Question

Bonjour quelqu’un pourrait m’aider svp exo 6 et 7 merciiiii
Bonjour quelqu’un pourrait m’aider svp exo 6 et 7 merciiiii

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2 Réponse

  • A=(3-5)-(6+2)
    =3-5-6-2
    =-10


    B=(-6+4)-(3+2)
    =-6+4-3-2
    =-7


    C=(7-2)+(-3+4)
    =7-2-3+4
    =6


    D=(-5+3)-(1-3)
    =-5+3-1+3
    =0



    A=(2-7)+(-3-5)-(2+3)
    =2-7-3-5-2-3
    =-18


    B=(2-3)-(5-1)
    =2-3-5+1
    =-5


    C=(-8+6)-(-7+11)
    =-8+6+7-11
    =-6


    D=(-8+5)-(-3-4)
    =-8+5+3+4
    =4

  • Réponse :

    Bonjour,

    Exercice 6

    A = (3 – 5) – (6 + 2)

    = –2 – 8

    = –10

    B = (–6 + 4) – (3 + 2)

    = –2 – 5

    = –7

    C = (7 – 2) + (–3 + 4)

    = 5 + 1

    = 6

    D = (–5 + 3) – (1 – 3)

    = –2 – (–2)

    = –2 + 2

    = 0

    Exercice 7

    A = (2 – 7) + (–3 – 5) – (2 + 3)

    = –5 + (–8) – 5

    = –5 – 8 – 5

    = –18

    B = (2 – 3) – (5 – 1)

    = –1 – 4

    = – 5

    C = (–8 + 6) – (–7 + 11)

    = –2 – 4

    = –6

    D = (–8 + 5) – (–3 – 4)

    = –3 – (–7)

    = –3 + 7

    = 4

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