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ExempleCalculs numériques entiers

Calcul numériques sur les décimauxCopyright

Séances de calcul mentalSixième

5 janvier 2011

Séance de calcul mental

La classes est partagée en deux groupes :- le Groupe Bleu,- le Groupe Rouge.

Voici une série d’exercices.

Indiquez les résultats correspondant à votre couleursur la copie.

Le temps est limité.

Effectuez l’opération suivante :

197 + 413 516 + 524

Séance I - AdditionsSéance II - Tables de multiplicationSéance III - Tables de multiplication (bis)Séance IV - Multiplications à trouSéance V - Tables de division

Séance I

67 + 43 56 + 54

163 + 237 267 + 133

567 − 70 356 + 60

60 × 8 70 × 6

234 + 453 453 + 345

Correction de la séance

67 + 43 = 110 56 + 54 = 110

163 + 237 = 400 267 + 133 = 400

567 − 70 = 497 356 + 60 = 416

60 × 8 = 480 70 × 6 = 420

234 + 453 = 687 453 + 345 = 798

Séance II - Tables de multiplication

6 × 7 9 × 9

7 × 8 6 × 6

6 × 9 8 × 9

7 × 9 6 × 7

8 × 8 7 × 8

7 × 7 6 × 9

6 × 8 7 × 9

8 × 9 8 × 8

6 × 6 7 × 7

9 × 9 6 × 8

6 × 7 = 42 9 × 9 = 81

7 × 8 = 56 6 × 6 = 36

6 × 9 = 54 8 × 9 = 72

7 × 9 = 63 6 × 7 = 42

8 × 8 = 64 7 × 8 = 56

7 × 7 = 49 6 × 9 = 54

6 × 8 = 48 7 × 9 = 63

8 × 9 = 72 8 × 8 = 64

6 × 6 = 36 7 × 7 = 49

9 × 9 = 81 6 × 8 = 48

Séance III - Tables de multiplication (bis)

3 × 11 4 × 9

2 × 12 3 × 11

4 × 9 2 × 12

5 × 13 9 × 6

6 × 8 9 × 9

7 × 8 7 × 9

8 × 9 7 × 8

7 × 9 8 × 9

9 × 9 6 × 8

9 × 6 5 × 13

3 × 11 = 33 4 × 9 = 36

2 × 12 = 24 3 × 11 = 33

4 × 9 = 36 2 × 12 = 24

5 × 13 = 65 9 × 6 = 54

6 × 8 = 48 9 × 9 = 81

7 × 8 = 56 7 × 9 = 63

8 × 9 = 72 7 × 8 = 56

7 × 9 = 63 8 × 9 = 72

9 × 9 = 81 6 × 8 = 48

9 × 6 = 54 5 × 13 = 65

Séance IV - Multiplications à trou

Déterminer le nombre manquant :

8 × • = 56 7 × • = 63

7 × • = 42 6 × • = 54

6 × • = 48 9 × • = 81

7 × • = 49 8 × • = 56

8 × • = 64 7 × • = 42

9 × • = 72 6 × • = 48

8 × • = 48 7 × • = 49

7 × • = 63 8 × • = 64

6 × • = 54 9 × • = 72

9 × • = 81 8 × • = 48

8 × 7 = 56 7 × 9 = 63

7 × 6 = 42 6 × 9 = 54

6 × 8 = 48 9 × 9 = 81

7 × 7 = 49 8 × 7 = 56

8 × 8 = 64 7 × 6 = 42

9 × 8 = 72 6 × 8 = 48

8 × 6 = 48 7 × 7 = 49

7 × 9 = 63 8 × 8 = 64

6 × 9 = 54 9 × 8 = 72

9 × 9 = 81 8 × 6 = 48

Séance V - Tables de divisions

56 ÷ 7 81 ÷ 9

36 ÷ 9 64 ÷ 8

72 ÷ 8 49 ÷ 7

54 ÷ 6 56 ÷ 7

28 ÷ 4 36 ÷ 9

42 ÷ 7 72 ÷ 8

63 ÷ 9 54 ÷ 6

81 ÷ 9 28 ÷ 4

64 ÷ 8 42 ÷ 7

49 ÷ 7 63 ÷ 9

56 ÷ 7 = 8 81 ÷ 9 = 9

36 ÷ 9 = 4 64 ÷ 8 = 8

72 ÷ 8 = 9 49 ÷ 7 = 7

54 ÷ 6 = 9 56 ÷ 7 = 8

28 ÷ 4 = 7 36 ÷ 9 = 4

42 ÷ 7 = 6 72 ÷ 8 = 9

63 ÷ 9 = 7 54 ÷ 6 = 9

81 ÷ 9 = 9 28 ÷ 4 = 7

64 ÷ 8 = 8 42 ÷ 7 = 6

49 ÷ 7 = 7 63 ÷ 9 = 7

Séance I - Écriture décimaleSéance II - Droite graduéeSéance III : Droite graduée (bis)

Séance I - Écriture décimale

Donner l’écriture décimale de :

123100

2341000

123100

2341000

5431000

432100

5431000

432100

1210 +

45100

4510 +

34100

1210 +

45100

4510 +

34100

Écrire en lettre :

123456 654321

Écrire en lettre :

123456 654321

Écrire en lettre :

300480 400580

Écrire en lettre :

300480 400580

123100 = 1, 23

2341000 = 0, 234

123100 = 1, 23

2341000 = 0, 234

5431000 = 0, 543

432100 = 4, 32

5431000 = 0, 543

432100 = 4, 32

1210 +

45100

4510 +

34100

1, 2+ 0, 45 = 1, 65 4, 5+ 0, 34 = 4, 84

1210 +

45100

4510 +

34100

1, 2+ 0, 45 = 1, 65 4, 5+ 0, 34 = 4, 84

Écrire en lettre :

123456 654321Cent vingt-trois mille quatre cent cinquante sixSix cent cinquante-quatre mille trois cent vingt et un

Écrire en lettre :

123456 654321Cent vingt-trois mille quatre cent cinquante sixSix cent cinquante-quatre mille trois cent vingt et un

Écrire en lettre :

300480 400580Trois cents mille quatre cent quatre-vingtsQuatre cents mille cinq cent quatre-vingts

Écrire en lettre :

300480 400580Trois cents mille quatre cent quatre-vingtsQuatre cents mille cinq cent quatre-vingts

Séance II - Droite graduée

+ + + + + + + + + + +0 10

A A

Indiquez l’abscisse du point A de votre couleur.

+ + + + + + + + + + +20 40

B B

Indiquez l’abscisse du point B de votre couleur.

+ + + + + + + + + + +30 80

C C

Indiquez l’abscisse du point C de votre couleur.

+ + + + + + + + + + +12 32

D B

Indiquez l’abscisse du point D de votre couleur.

+ + + + + + + + + + +220 320

E E

Indiquez l’abscisse du point E de votre couleur.

+ + + + + + + + + + +0 10

A3

A6

+ + + + + + + + + + +20 40

B24

B34

+ + + + + + + + + + +30 80

C C

+ + + + + + + + + + +12 32

D B

+ + + + + + + + + + +220 320

E E

Séance III - Droite graduée (bis)

+ + + + + + + + + + +0 1

A A

+ + + + + + + + + + +1, 3 1, 4

BB

+ + + + + + + + + + +3, 14 3, 15

C C

+ + + + + + + + + + +3, 5 3, 7

DD

+ + + + + + + + + + +1 2, 5

E E

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Document compilé avec LaTeX sous Linux Debian le 5 janvier 2011.

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