Maths (1) Flashcards

1
Q

1/5

A

20%

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2
Q

1/6

A

16,667% (Prendre 16,5%)

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3
Q

1/7

A

14.2% (Prendre 14%)

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4
Q

1/8

A

12,5%

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5
Q

1/9

A

11,1% (Prendre 11%)

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6
Q

1/11

A

9,09%( prendre 9%)

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7
Q

1/12

A

8,33% (Prendre 8,5%)

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8
Q

1/13

A

7,25%

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9
Q

1/14

A

7,1% (prendre 7%)

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10
Q

1/15

A

6,66%

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11
Q

1/16

A

6,25%

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12
Q

1/17

A

5.88% (Prendre 6%)

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13
Q

1/18

A

5.55% (Prendre 5.5%)

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14
Q

1/19

A

5.25%

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15
Q

1/20

A

5%

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16
Q

Rappeler comment retrouver facilement 5% de quelque chose

A

Diviser par 2 puis 10 (ou l’inverse)

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17
Q

Rappeler comment retrouver facilement 32% de 50?

A

On se rappelle que 32% x 50 = 32 x 50%! = 16!

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18
Q

Déterminer 44% de 75

A

33!

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19
Q

Calculer : 15% de 66

A

10 quasiment

20
Q

Calculer : 23% de 50

21
Q

Calculer 93% de 300

22
Q

Calculer 11*407

23
Q

Calculer 291*11

24
Q

Calculer 52*11

25
Calculer 742 * 11
8162
26
Calculer 13*12
156
27
Calculer 31*12
372
28
Calculer 53*12
636
29
Calculer 81*12
972
30
Calculer 93*12
1116
31
Calculer 84*12
1008
32
Calculer 311*12
3732
33
Calculer 491*12
5892
34
Calculer 0,5*12
6
35
Calculer 25*12
300
36
100/7
14,25
37
25^2
625
38
35^2
1225
39
65^2
4225
40
105^2
11025
41
31^2
961
42
29^2
841
43
99^2
9801
44
13^2
169
45
14^2
196