Effectue les opérations suivantes en respectant l'ordre des opérations. a) 7 + ( - 3 ) . 5 =
b) -5 . ( - 2 ) - 6 .3 =
c) 4 - 2 . 3² + 5 =
d ) 12 - 3 . ( 2 - 5 ) =
e) 10 + 5. ( - 2 ) . 5 =
2 . 5³ .- 4 -10² =
(16 - 7) :3 . 8 = 




C'est très urgent !!!!!
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