Calcul Mental

Question 1

11²

Answer 1

121

Question 2

12²

Answer 2

144

Question 3

13²

Answer 3

169

Question 4

14²

Answer 4

196

Question 5

15²

Answer 5

225

Question 6

16²

Answer 6

256

Question 7

17²

Answer 7

289

Question 8

18²

Answer 8

324

Question 9

19²

Answer 9

361

Question 10

20²

Answer 10

400

Question 11

2³

Answer 11

8

Question 12

3³

Answer 12

27

Question 13

4³

Answer 13

64

Question 14

5³

Answer 14

125

Question 15

6³

Answer 15

216

Question 16

7³

Answer 16

343

Question 17

8³

Answer 17

512

Question 18

9³

Answer 18

729

Question 19

10³

Answer 19

1000

Question 20

A la fois cube et carre

Answer 20

0,1,64,729

Question 21

Somme des k pour k=0

Answer 21

n(n+1)/2

Question 22

Somme des k² pour k=0

Answer 22

n(n+1)(2n+1)/6

Question 23

Somme des k³ pour k=0

Answer 23

(n(n+1)/2)²

Question 24

0!

Answer 24

1

Question 25

1!

Answer 25

1

Question 26

2!

Answer 26

2

Question 27

3!

Answer 27

6

Question 28

4!

Answer 28

24

Question 29

5!

Answer 29

120

Question 30

6!

Answer 30

720

Question 31

7!

Answer 31

5040

Question 32

8!

Answer 32

40320

Question 33

9!

Answer 33

362 880

Question 34

10!

Answer 34

3 628 800

Question 35

(n p) n>= p

n<=

Answer 35

n!/p!(n-p)!

0

Question 36

(n 0)

Answer 36

(n n)=1

Question 37

(n 1)

Answer 37

(n n-1)=n

Question 38

(n 2)

Answer 38

(n n-2)=n(n-1)/2

Question 39

Le binôme de Newton

Answer 39

Somme des (n k)a^kb^(n-k)=(a+b)^n

Question 40

11³

Answer 40

1331

Question 41

12³

Answer 41

1728

Question 42

13³

Answer 42

2197

Question 43

14³

Answer 43

2744

Question 44

15³

Answer 44

3375

Question 45

16³

Answer 45

4096

Question 46

17³

Answer 46

4913

Question 47

18³

Answer 47

5832

Question 48

19³

Answer 48

6859

Question 49

20³

Answer 49

8000