Notation scientifique – 4ème – Exercices corrigés
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
Donner l’écriture scientifique des deux nombres puis les comparer :
1 900 x 103 et 0,19 x 106
_____________________________________________________________________________________
0,09 x 10-7 900 x 10-10
_____________________________________________________________________________________
92,9 x 108 et 928 x 107
_____________________________________________________________________________________
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Correction
Correction – Notation scientifique – 4ème – Exercices corrigés pdf
