Réponse :
bonjour
Explications étape par étape :
A=-22+(13-5)x(-5)
=-22+8x-5
= -22-40
=-62
B=(-2)x(-8) +2x(-20)/4
=16 + 2x-5
=16-10
=6
C=7x(-7)+3x(-25)+(-5)
=-49 -75-5
=-129
D=150/ (-1.2-9x3.2)
=150 / (-1.2-28.8)
=150 / -30
=-5
21
A=-5+3x5
=-5+15
=20
B=7-4x6
=7-24
=-17
C=18-12/4
=18/-3
=-6
D=-2x6 +3x(-8)
=-12 -24
=-36
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Réponse :
bonjour
Explications étape par étape :
A=-22+(13-5)x(-5)
=-22+8x-5
= -22-40
=-62
B=(-2)x(-8) +2x(-20)/4
=16 + 2x-5
=16-10
=6
C=7x(-7)+3x(-25)+(-5)
=-49 -75-5
=-129
D=150/ (-1.2-9x3.2)
=150 / (-1.2-28.8)
=150 / -30
=-5
21
A=-5+3x5
=-5+15
=20
B=7-4x6
=7-24
=-17
C=18-12/4
=18/-3
=-6
D=-2x6 +3x(-8)
=-12 -24
=-36
Verified answer
J’ai prit en photo l’exercice 20Exercice 21:
A= -5+3x5 = -5 + 15 = -10
B= 7 - 4 × 6 = 7 - 24 = -17
C = 18 - 12 ÷ 4 = 18 - 3 = 15
D = -2 × 6 + 3 x -8 = -12 + 3 x -8 = -12 + (-24) = -36