bonjour pourrais vous m'aider svp ❤️a) Calculer en indiquant les étapes des calculs.
A = 15 - 4 + (13-17) - (24 - 32) B = 13,7 + 8,3 - (-1+7) - (13,4-5,6)
C = -24,1- (12,3 - 15,1) + (14,3 - 17,9)
​

By: USER9525
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
bonjour pourrais vous m'aider svp ❤️a) Calculer en indiquant les étapes des calculs.
A = 15 - 4 + (13-17) - (24 - 32) B = 13,7 + 8,3 - (-1+7) - (13,4-5,6)
C = -24,1- (12,3 - 15,1) + (14,3 - 17,9)
​
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Best Answer
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Réponse:

Bonjour

Explications étape par étape:

A=15-4+(13-17)-(24-32)

A=15-4+(-4)-(-8)

A=15-4-4+8

A=15

B=13,7+8,3-(-1+7)-(13,4-5,6)

B=13,7+8,3-6-7,8

B=8,2

C=-24,1-(12,3-15,1)+(14,3-17,9)

C=24,1-(-2,8)+(-3,6)

C=24,1+2,8-3,6

C=23,3

Rappel: - - = +

+ += +

+ - = -

- + = -

Answered on 27 Agustus 2025

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