Exercices

Addition de nombres relatifs

Correction exercice 5ème
Effectuer les additions suivantes.
  • (-2) + 4

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


  • -2 + 3

    -2 + 3 = 3 - 2 = 1


  • (-5) + (-3)

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


  • -7 + (-1)

    -7 + (-1) = -(7 + 1) = -8


  • -3 + (-9)

    -3,2 + (-9,5) = -(3,2 + 9,5) = -12,7