https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%22ADICION%22%29&sort_by=title_az&format=rss 8 0 50 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=70922 By Fuson, Karen C..
.
273-280

]]> Place hold on Issues in place-value and multidigit addition and subtraction learning and teaching

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=70922 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=71086 By Fuson, Karen C..
.
148-165

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

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=71086 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=71887 By Lee, Kil S..
.
199-202

]]> Place hold on Left-to-right computations and estimation

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=71887 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=72091 By Hiebert, James.
.
98-122

]]> Place hold on Links between teaching and learning place value with understanding in first grade

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=72091 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=72516 By Burns, Marilyn.
.
28-29

]]> Place hold on Math standards in action

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=72516 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=73107 By Usnick, Virginia E..
.
53-62

]]> Place hold on Multidigit addition : a study of an alternate sequence

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=73107 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=76421 By Christensen, Carol A. | Cooper, Tom J..
Inglaterra .
37-44

]]> Place hold on The role of cognitive strategies in the transition from counting to retrieval of basic addition facts

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=76421 ISBN: https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=78874 By Nelson, Marvin N..
.
211-213

]]> Place hold on Using a homemade calculator to master the basic facts

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=78874