Bonsoir ,j aurai besoin d’aide sur cette exercice :6 Calculer chaque expression. ain A=-7+3 - 4 + 2 =.. B = -(3 - 8 + 2) = ..... C = (-3) + (-7 - 2) = ..... D=-
Mathématiques
melinasuresh
Question
Bonsoir ,j aurai besoin d’aide sur cette exercice :6 Calculer chaque expression.
ain
A=-7+3 - 4 + 2 =..
B = -(3 - 8 + 2) = .....
C = (-3) + (-7 - 2) = .....
D=-(4 - 3) + 8 =
E = 9- (7 - (2 + 4))
F= - (- (5 + 7)) =
Merci à ceux qui répondent ☺️
ain
A=-7+3 - 4 + 2 =..
B = -(3 - 8 + 2) = .....
C = (-3) + (-7 - 2) = .....
D=-(4 - 3) + 8 =
E = 9- (7 - (2 + 4))
F= - (- (5 + 7)) =
Merci à ceux qui répondent ☺️
2 Réponse
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1. Réponse MitchAlexandrine2314
A=-7+3 - 4 + 2
=-4-4+2
=-8+2
=-6
B = -(3 - 8 + 2)
=-3+8-2
=-5+8
=+3
C = (-3) + (-7 - 2)
=-3 -9
=-12
D=-(4 - 3) + 8
=(-4+3)+8
=-1+8
=+7
E = 9- (7 - (2 + 4))
=9-(7-2-4)
=9-(5-4)
=9-(+1)
=9-1
=8
F= - (- (5 + 7))
=-(-5-7)
=-(-12)
=+12
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2. Réponse bilalBH
Réponse:
A = -6
B = 3
C = -12
D = 7
E = 8
F = 12
Explications étape par étape:
A = Pas besoins d'étape
B = - ( 3 - 8 + 2 ) = - 3 + 8 - 2 = 3
C = ( - 3 ) + ( - 7 - 2 ) = - 3 - 7 - 2 = - 12
D = -(4 - 3) + 8 = - 4 + 3 + 8 = 7
E = 9- (7 - (2 + 4)) = 9 - 7 + ( 2 + 4 ) = 9 - 7 + 2 + 4 = 8
F = - (- (5 + 7)) = + ( 5 + 7 ) = + 5 + 7 = 12