Abstract
Some properties of the so called number-pyramids are given and their use in teaching practice for secondary schools are presented.
Keywords: Number-pyramids.
Pages: 37$-$48
Volume VI , Issue 1 , 2003
Published by Društvo matematičara Srbije Kneza Mihaila 35/IV, P.O.B. 355, 11000 Belgrade, Serbia E-mail: drustvomatematicara(at)yahoo.com Fax: +381 11 3036 819 ISSN 2406-1077 (Online), ISSN 1451-4966 (Print)