Bonjour,

Transforme les soustractions en additions puis effectue les calculs.

a. (+4) - (-2) + (-8) - (+ 7)

b. (-3) - (-5)-(-4) + (+9)

c. (-27) ( -35) (-20) (17)

d. (+ 3,1) + (-3,5) - (+ 7,8) - (+ 1,6)

e. (- 16,1) - (+ 4,2) + (+ 7,5) - (+ 2,6)
merci d'avance ​
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