Central Library OPAC University of Rajshahi

Patterns of error in the addition number facts /

Thyne, James M

Patterns of error in the addition number facts / By James M Thyne - London : University of London Press, c1954 - xx, 275 p. ; 23 cm. - Publications of the Scottish Council for Research in Education, 37 .


Arithmetic--Study and teaching.

372.72 / THP 1954