Design Research on Addition and Subtraction Up to 100 Using Mental Arithmetic Strategies on an Empty Number Line At the 2nd grade of SDN Percontohan Komplek IKIP, Jakarta
| Main Authors: | Sari, Puspita, Haan, Dede de, Zulkardi, Zulkardi |
|---|---|
| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
, 2009
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/899/1/Puspita_Sari%2Ddede%2Ddehan%2Dzulkardi.pdf http://eprints.unsri.ac.id/899/ |