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Mathématiques > Calcul mental > Flashcards

Calcul mental Flashcards

1
Q

11 x 11 = ?

A

121

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2
Q

12 x 12 = ?

A

144

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3
Q

13 x 13 = ?

A

169

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4
Q

14 x 14 = ?

A

196

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5
Q

15 x 15 = ?

A

225

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6
Q

16 x 16 = ?

A

256

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7
Q

17 x 17 = ?

A

289

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8
Q

18 x 18 = ?

A

324

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9
Q

19 x 19 = ?

A

361

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10
Q

20 x 20 = ?

A

400

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11
Q

2 au cube ?

A

8

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12
Q

3 au cube ?

A

27

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13
Q

4 au cube ?

A

64

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14
Q

5 au cube ?

A

125

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15
Q

6 au cube ?

A

216

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16
Q

7 au cube

A

343

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17
Q

8 au cube

A

512

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18
Q

9 au cube

A

729

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19
Q

10 au cube

A

1000

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20
Q

11 au cube

A

1331

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21
Q

12 au cube

A

1728

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22
Q

13 au cube

A

2197

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23
Q

14 au cube

A

2744

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24
Q

15 au cube

A

3 375

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25
Q

16 au cube

A

4096

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26
Q

17 au cube

A

4 913

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27
Q

18 au cube

A

5 832

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28
Q

19 au cube

A

6 859

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29
Q

20 au cube

A

8000

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30
Q

Quels sont les nombres qui sont à la fois cube et carré ?

A

1 = 1^2 = 1^3

64 = 8^2 = 4^3

0 = 0^2 = 0^3

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31
Q

11 x 11 ?

A

121

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32
Q

12 x 11 ?

A

132

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33
Q

13 x 11 ?

A

143

34
Q

14 x 11 ?

A

154

35
Q

15 x 11 ?

A

165

36
Q

16 x 11 ?

A

176

37
Q

17 x 11 ?

A

187

38
Q

18 x 11

A

198

39
Q

19 x 11

A

209

40
Q

20 x 11

A

220

41
Q

1 x 12

A

12

42
Q

2 x 12

A

24

43
Q

3 x 12

A

36

44
Q

4 x 12

A

48

45
Q

5 x 12

A

60

46
Q

6 x 12

A

72

47
Q

7 x 12

A

84

48
Q

8 x 12

A

96

49
Q

9 x 12

A

108

50
Q

10 x 12

A

120

51
Q

11 x 12

A

132

52
Q

12 x 12

A

144

53
Q

12 x 13

A

156

54
Q

14 x 12

A

168

55
Q

15 x 12

A

180

56
Q

16 x 12

A

192

57
Q

17 x 12

A

204

58
Q

18 x 12

A

216

59
Q

19 x 12

A

228

60
Q

20 x 12

A

240

61
Q

Quand un nombre est il divisible par 2 ?

A

Quand il est pair

62
Q

Quand un nombre est il divisible par 3 ?

A

Quand la somme de ses chiffres est divisible par 3 (ex 3,6,9)

63
Q

Quand un nombre est il divisible par 4 ?

A

Si et seulement si ses 2 derniers chiffres forment un nombre divisible par 4

Ex: 324 —> 24 = 4 x 6

64
Q

Quand un nombre est il divisible par 5 ?

A

Si il se termine par 0 ou 5

65
Q

Quand un nombre est il divisible par 6 ?

A

Si et seulement si il est divisible par 2 ET 3

66
Q

Quand un nombre est il divisible par 9 ?

A

Si la somme des ses chiffres est égale à un nombre divisible par 9 (9,18,27 …)

67
Q

Quand un nombre est il divisible par 10 ?

A

Si et seulement si il se termine par 0

68
Q

Quand un nombre est il divisible par 11 ?

A

Nb à 2 chiffres = si les 2 chiffres sont identiques

Nb à 3 chiffres = si la somme de ses 1er et 3e chiffres est égale au 2e

69
Q

1!

A

1

70
Q

2!

A

2

71
Q

0!

A

1

72
Q

3!

A

6

73
Q

4!

A

24

74
Q

5!

A

120

75
Q

6!

A

720

76
Q

7!

A

5040

77
Q

8!

A

40 320

78
Q

9!

A

362 880

79
Q

10!

A

3 628 800

80
Q

Quel sont les nombres premiers?

A 
2,3,5,7,11,13,17,19,
23,29,31,37,
41,43,47,53,59,
61,67,71,73,79,
83,89,97,101

Mathématiques (4 decks)

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