Suter, Allan D. Contemporary's number sense : discovering basic math concepts : whole number multiplication & division / Allan D. Suter. - Lincolnwood, Illinois, USA : Contemporary Books, c1990. - 60 pages : black and white illustrations ; 28 cm., paperback. ISBN: 0809242338 Subjects--Topical Terms: Mathematics--Study and teaching. Dewey Class. No.: CIR 510 S965 1990