Ce livre de mathématiques est le produit de centaines d'heures de cours individuels. Il est clair, précis, exhaustif.
Il contient tous les cours de la classe de troisième, et donc tout ce qu'il faut……続きを見る
The weekly lottery numbers were drawn: 25 – 40 – 41 – 52 – 56.
Have you ever wondered why 25?
Have you ever wondered why not 39?
Have you ever wondered why didn't you choose 41?
Have you ever wonder……続きを見る
Traditional magic squares are squares of numbers in which the rows, columns, and diagonals all add up to the same total. With a voluminous literature going back some 2,500 years, the universal assum……続きを見る
