Notation scientifique – Exercices corrigés : 2eme Secondaire – PDF à imprimer

Exercice 1

Donner l’écriture décimale

3,28 x 10^{– 5} = ____________________________________________________________

9 x 10^{– 2} = ______________________________________________________________

54 x 10^{– 4} = _____________________________________________________________

5,4 x 10^{– 3} = _____________________________________________________________

58 x 10^{– 6} = ______________________________________________________________

3,78 x 10^{– 1} = _____________________________________________________________

378 x 10^{– 3} = _____________________________________________________________

37,8 x 10^{– 4} = _____________________________________________________________
Exercice 2

Donner l’écriture scientifique

0,00000025 = ____________________________________________________________

9 500000= _______________________________________________________________

32 000,00= _______________________________________________________________

0,0093 = _________________________________________________________________

808 000= ________________________________________________________________

7 200000000= ____________________________________________________________

0,0000561 = ______________________________________________________________

37 000000= _______________________________________________________________

Exercice 3

Donner l’écriture scientifique

36,15 = ________________________________________________________________

124,580= _______________________________________________________________

10003 = ________________________________________________________________

0,0009 = ________________________________________________________________

0,00000001 = ____________________________________________________________

54 780000= ______________________________________________________________

152 000,03 = _____________________________________________________________

44 444 = _________________________________________________________________

Exercice 4

Donner l’écriture scientifique et ranger les nombres dans l’ordre décroissant

1200000 = ______________________________________________________________

7232 = _________________________________________________________________

962000000 = _____________________________________________________________

53210000 = ______________________________________________________________

1000000000 = ____________________________________________________________

2 = ______________________________________________________________________

_____________________________________________________________________________________

Exercice 5

Comparer :

5,7 x 10^-9 et 5,8 x 10^-10 = _____________________________________________________________

 8,6 x 10¹⁵ et 1,41 x 10¹⁵  =____________________________________________________________

5 x 10⁴ et 5 x 10³ = _________________________________________________________________

7,45 x 10⁷ et 8,51 x 10⁸ =_____________________________________________________________

4,8 x 10^-1 et 4,8 x 10³ =_______________________________________________________________

Exercice 6