https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%22SISTEMA%20NUMERICO%22%29&sort_by=title_az&format=rss 6 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=69852 By Krusen, Kim.
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46-48

]]> Place hold on A historical reconstruction of our number system

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=69852 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=110892 By Becerril Díaz, Elizabeth.
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I-III

]]> Place hold on Fracciones con egipcios

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148-165

]]> Place hold on Korean children's single digit addition and subtraction : numbers structured by ten

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221-240

]]> Place hold on Scores and forfeits - an intuitive model for integer arithmetic

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México .
50-53

]]> Place hold on Sistemas de numeración

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México .
58-63

]]> Place hold on Los sistemas numerales en lengua indígena : una mirada etnolingüística

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