104 Calculer astucieusement. A = (-3) × (-1) × (+5)× (-8) B=(-3) × (-2) x (+12) × (-5) × (-1) C = (+7) × (-1) x (+3) × (-2) × (+1)
Mathématiques
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Question
104 Calculer astucieusement.
A = (-3) × (-1) × (+5)× (-8)
B=(-3) × (-2) x (+12) × (-5) × (-1)
C = (+7) × (-1) x (+3) × (-2) × (+1)
A = (-3) × (-1) × (+5)× (-8)
B=(-3) × (-2) x (+12) × (-5) × (-1)
C = (+7) × (-1) x (+3) × (-2) × (+1)