Mathématiques

Question

bonjour
maths exercice 3 s’il vous plaît ?
bonjour maths exercice 3 s’il vous plaît ?

1 Réponse

  • Q : -4 + 5 - (-4)
    = -4 + 5 + 4
    = -4 + 9
    = 5

    R: -14 - 7 x 3
    = -14 - 21
    = -35

    S : (-5)x(-2)x(-3)x(-2)x(-4)
    = (-10)x(-6)x(-4)
    = (-10)x(-24)
    = (-240)

    T: (-5)+(-2)+(+3)x(-2)-(+4)
    = (-5)+(-2)+(-6)-(+4)
    = (-7)+(-10)
    =(-17)

    U: -2x4-6x(-5)
    = -8+30
    = 22

    V= 12-2+5
    = 12-7
    = 5

    W= 34-(17-12+6)
    = 34- (17-18)
    =34+1
    = 35

    X= [32-(-7+7x2)] - [8-(-20-2x4)]
    = [ 32-(-7+14)] - [8-(-20-8)]
    = [32+7] - [8+28]
    = 39+36
    = 75