
Révisions : Proportions et pourcentages
Quiz
•
Mathematics
•
8th - 12th Grade
•
Practice Problem
•
Hard
Mme Martin
Used 1+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Augmenter de 20% c'est multiplier par ...
1,2
0,2
0,8
20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diminuer de 40%, c'est multiplier par...
0,4
0,6
-0,4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Multiplier par 0,3, c'est...
Augmenter de 30%
Diminuer de 30%
Diminuer de 70%
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Un article est soldé de 10%, puis de 20% à la deuxième démarque. Comment calcule-t-on le coefficient multiplicateur ?
0,1+0,2
0,1-0,2
0,9+0,8
0,9x0,8
0,1x0,2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si un prix augmente de 75%, faut-il le faire diminuer de 75% pour revenir au prix de départ ?
Oui
Non
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