Putting together and taking apart : addition and subtraction /

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by Economopoulos, Karen.
[ 01. English Non Fiction ] Authors: Russell, Susan Jo. | Technical Education Research Centers (U.S.) Series: Investigation in number, data, and space Published by : Dale Seymour Publications, (Meno Park, CA :) Physical details: vi, 24, 202 p. : ill. ; 28 cm. Subject(s): Mathematics --Study and teaching (Elementary) | Mathematics --Study and teaching (Primary) | Arithmetic --Study and teaching (Elementary) | Arithmetic --Study and teaching (Primary) Year : 1998 01. English Non Fiction Item type : 01. English Non Fiction
Location Call Number Serial Data Published Status Date Due
Amherst Cove Consolidated School PD 510.71 RUS Available

"Developed at TERC [Technical Education Research Centers], Cambridge, Massachucetts."

"Grade 2, also appropiate for grade 3."