The document provides instructions and examples for calculating percentages of prices. It lists 5 examples of calculating percentages for different prices, such as 50% of 101€, 25% of 36€, 30% of 40€, 10% of 65€, and 20% of 500€. For each example, it shows the calculation to find the percentage of the price. The calculations are then checked in the correction section.

1. Calcul mental
N°34
“Pourcentage d’un prix”

2. Pour chaque diapositive,
calculer le pourcentage
du prix écrit.

3. 50% de 101€
Diapositive 1Diapositive 1

5. 25% de 36€
Diapositive 2Diapositive 2

7. 30% de 40€
Diapositive 3Diapositive 3

9. 10% de 65€
Diapositive 4Diapositive 4

11. 20% de 500€
Diapositive 5Diapositive 5

13. FIN

14. CORRECTION

15. = ÷
=
50% de 101€
1
5
01€ 2
0,5€
Diapositive 1Diapositive 1

16. Diapositive 1Diapositive 1
= ÷
=
50% de 101€
1
5
01€ 2
0,5€

17. Diapositive 1Diapositive 1
= ÷
=
50% de 101€
1
5
01€ 2
0,5€

18. = ÷
=
25% de 36€
36€ 4
9€
Diapositive 2Diapositive 2

19. Diapositive 2Diapositive 2
= ÷
=
25% de 36€
36€ 4
9€

20. Diapositive 2Diapositive 2
= ÷
=
25% de 36€
36€ 4
9€

21. = × ÷
= ÷
=
30% de 40€
40€ 30 100
1200€ 100
12€
Diapositive 3Diapositive 3

22. Diapositive 3Diapositive 3
= × ÷
= ÷
=
30% de 40€
40€ 30 100
1200€ 100
12€

23. Diapositive 3Diapositive 3
= × ÷
= ÷
=
30% de 40€
40€ 30 100
1200€ 100
12€

24. Diapositive 3Diapositive 3
= × ÷
= ÷
=
30% de 40€
40€ 30 100
1200€ 100
12€

25. = ÷
=
10% de 65€
65€ 10
6,5€
Diapositive 4Diapositive 4

26. Diapositive 4Diapositive 4
= ÷
=
10% de 65€
65€ 10
6,5€

27. Diapositive 4Diapositive 4
= ÷
=
10% de 65€
65€ 10
6,5€

28. = ÷ ×
= ×
=
20% de 500€
(500€ 100) 20
5€ 20
100€
Diapositive 5Diapositive 5

29. Diapositive 5Diapositive 5
= ÷ ×
= ×
=
20% de 500€
(500€ 100) 20
5€ 20
100€

30. Diapositive 5Diapositive 5
= ÷ ×
= ×
=
20% de 500€
(500€ 100) 20
5€ 20
100€

31. Diapositive 5Diapositive 5
= ÷ ×
= ×
=
20% de 500€
(500€ 100) 20
5€ 20
100€