Interrogation Ecrite N°
:
Nom :
Prénom :
Exercice 1 : Les nombres 1) Complétez le tableau suivant : écrivez chacun des nombres donnés dans la (ou les) colonne(s) correspondant à un ensemble de nombre auquel ce nombre appartient. 1 ligne correcte : 1 point 1 ligne incorrecte ou incomplète : 0 point ℕ - 8,3 − 4 2 ℤ D - 8,3
Q
ℝ - 8,3
-8,3
11 3 5 1 3
9 2
2) et 2 sont des .............................................. . Exercice 2 : Complétez : Si a et b sont des nombres différents de 0 ; n et m sont des nombres entiers (positifs ou négatifs).
● ●
am× an=
a m n =
am = an
●
●
ab n =
●
a n = b
Exercice 3 : Au dos de la feuille, simplifier 5 n 1 −5n . Exercice 4 : Complétez Si a et b sont des nombres positifs, ab =........................... et
Exercice 5 : Au dos de la feuille, réduire au maximum 45 3 5 −3 20.
a =...................................... si b ≠ 0. b
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