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		No cover image available Issues in place-value and multidigit addition and subtraction learning and teaching by Fuson, Karen C Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Korean children's single digit addition and subtraction : numbers structured by ten by Fuson, Karen C Kwon, Youngshim Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Left-to-right computations and estimation by Lee, Kil S Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Links between teaching and learning place value with understanding in first grade by Hiebert, James Wearne, Diana Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Math standards in action by Burns, Marilyn Winson, Beth Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Multidigit addition : a study of an alternate sequence by Usnick, Virginia E Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available The role of cognitive strategies in the transition from counting to retrieval of basic addition facts by Christensen, Carol A Cooper, Tom J Material type: Text; Format: print ; Literary form: Not fiction Publication details: Inglaterra Availability: No items available.
		No cover image available Using a homemade calculator to master the basic facts by Nelson, Marvin N Clark, H. Clifford Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.