Bonjour,

Je suis en 3ème, et je dois faire l'exercice 34 de la page 10 du livre iParcours.

Calcul mental
a. (− 5) × (+ 3)
b. (− 7) × (+ 4)
c. (− 40) × (− 2)
d. (+ 17) × (+ 10)
e. (+ 313) × (+ 0,1)
f. (− 1,5) × (+ 100)
g. (− 0,25) × (− 40)
h. (+ 8) × (− 0,3)
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