Multiplication par des multiples de 10 – 100 – 1000 ou par 0,1 – 0,01 – 0,001 – 6ème – Exercices corrigés
Exercice 1 : Calcul mental
- 4,192 x 1 000 = ______________________
- 1,14 x 10 000 = ______________________
- 0,43 x 100 = ________________________
- 182,1 x 10 000 = _____________________
- 0,1 x 1 000 = ________________________
- 91,21 x 100 = _______________________
- 100 x 100 = _________________________
- 4,67 x 10 000 = ______________________
Exercice 2 : Calcul mental
- 53,53 x 1 000 = ______________________
- 61,83 x 100 000 = ____________________
- 9,12 x 100 = ________________________
- 94,43 x 10 = ________________________
- 1,392 x 100 = _______________________
- 7,301 x 10 000 = _____________________
- 9,341 12 x 100 000= __________________
- 353 x 1 000 = _______________________
Exercice 3 : Calcul mental
- 182 x 0,001 = _______________________
- 454,7 x 0,01 = _______________________
- 7,43 x 0,000 1 = _____________________
- 25,32 x 0,1 = ________________________
- 143 205 x 0,000 001 = ________________
- 75,47 x 0,000 1 = ____________________
- 15,931 x 0,001 = _____________________
- 469,28 x 0,000 1 = ___________________
Exercice 4 : Compléter par 10 – 100 – 1 000 – …
a. | 54,09 | x | _______ | = | 540 900 |
b. | 24,9 | x | _______ | = | 249 |
c. | 0,351 | x | _______ | = | 3 510 |
d. | 0,011 | x | _______ | = | 1,1 |
e. | 9,0909 | x | _______ | = | 909,09 |
f. | 382,3 | x | _______ | = | 382 300 |
Exercice 5 : Compléter par 10 – 100 – 1 000 – …
a. | 49,001 | x | _______ | = | 49 001 |
b. | 84,21 | x | _______ | = | 842,1 |
c. | 33,33 | x | _______ | = | 3 333 |
d. | 0,000 02 | x | _______ | = | 2 |
e. | 73,12 | x | _______ | = | 7 312 |
f. | 92,02 | x | _______ | = | 920 200 |
Exercice 6 : Compléter par 0,1 – 0,01 – 0,001 – …
a. | 512,2 | x | _______ | = | 0,512 2 |
b. | 0,02 | x | _______ | = | 0,000 2 |
c. | 9,262 | x | _______ | = | 0,092 62 |
d. | 5 | x | _______ | = | 0,000 05 |
e. | 498 | x | _______ | = | 0,498 |
f. | 0,24 | x | _______ | = | 0,024 |
Correction
