LEEYUN LEEYUN 11-04-2022 Mathématiques Answered Exercice 3: Effectuer les calculs. A= (+12) + (-9) = E = (-3) + (-11) = B= (+8) + (+3) = F = (+4) + (-4) = C = (-4) + (-1) = G= (-5) + (+15) = D= (+4) + (-19) = H=(-53) + (+0) = I = (+35) + (+45) = J = (-25) + (+15) = K = (-40) + (-19)=L = (+24) +(-36) = pouvez vous m'aidez avec ses calculs svp..