00422    a2200133   4500001000700000020001800007041000800025100002300033250001000056300001800066040002500084245015900109260002000268115725  a9780325029634  apor  aO´Connell, Susan.  a. ed.  a156 p. + 1 cd  aBR-BrIDEAcBR-BrIDEA10aMastering the basic math facts in addition and subtractionbstrategies, activities & interventions to move students beyond memorizationc Susan O´Connell  bHeinemannc2011