YANIS200759 YANIS200759 22-09-2021 Mathématiques Answered Devoir maison Exercice 1: Calcule les expressions suivantes : A = -3 + 5 - 2 + 1 B=5 4 + 2-6 C =(+3) – (+2) - (-3) + (-4) + (+6) D =(-2) + (-5) - (-6) + (+7) (-6) + (+7) - (+3) E = (-8) X (-0,5) F = (+0,7) x (+0,6)