TY - BOOK AU - Sally,Judith D. AU - Sally,Paul J. TI - Integers, fractions, and arithmetic: a guide for teachers T2 - MSRI mathematical circles library SN - 9780821887981 (pbk. : acid-free paper) AV - QA135.6 .S234 2013 U1 - 372.72 23 PY - 2012/// CY - Berkeley, California, Providence, Rhode Island PB - Mathematical Sciences Research Institute, American Mathematical Society KW - Arithmetic KW - Study and teaching (Elementary) KW - Local N1 - Includes index ER -