Télécharger la présentation
1
La beauté des maths
2
1 x = 9 12 x = x = x = x = x = x = x = x =
3
1 x = x = x = x = x = x = x = x = x 9 +10=
4
9 x = x = x = x = x = x = x = x = Brillant n’est ce pas ?
5
Et regarder la symétrie
1 x 1 = 1 11 x 11 = x 111 = x 1111 = x = x = x = x = x =
