Activities for the maintenance of computational skills and the discovery of patterns /Bonnie H. Litwiller and David R. Duncan.
Litwiller, Bonnie H,
Activities for the maintenance of computational skills and the discovery of patterns /Bonnie H. Litwiller and David R. Duncan. - Reston, Virginia : National Council of Teachers of Mathematics, (c)1980. - iv, 92 pages : illustrations ; 28 cm.
80019773
Arithmetic--Problems, exercises, etc.
QA139 / .A285 1980
Activities for the maintenance of computational skills and the discovery of patterns /Bonnie H. Litwiller and David R. Duncan. - Reston, Virginia : National Council of Teachers of Mathematics, (c)1980. - iv, 92 pages : illustrations ; 28 cm.
80019773
Arithmetic--Problems, exercises, etc.
QA139 / .A285 1980