num_pages: 24
description: Prime numbers, perfect numbers, even numbers and amicable friendships between numbers has never been this interesting.In introducing the qualities of several numerical figures to children, this book seeks to generate interest in and curiosity for mathematics and to show the playful quality of numbers.
language: Spanish; Castilian
title: Entre Amigos / Among Friends (La Otra Escalera / the Other Stair)
titlecomplete: Entre Amigos / Among Friends (La Otra Escalera / the Other Stair) (Spanish Edition)
ratings_count: 1
publisher: Ediciones Castillo S.A. De C.V.