Adding it up helping children learn mathematics /

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Kaituhi rangatōpū: ProQuest (Firm)
Ētahi atu kaituhi: Kilpatrick, Jeremy, Swafford, Jane, Findell, Bradford
Hōputu: Tāhiko īPukapuka
Reo:Ingarihi
I whakaputaina: Washington, DC : National Academy Press, c2001.
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