Sutherland - Mental Arithmetic - New paperback or softback - X555z

Borrows - Mental Arithmetic Grids - New paperback or softback - X555z

Raub - Werner Mental Arithmetic - paperback or softback - X555z

Quackenbos - A Mental Arithmetic - New paperback or softback - 50 - X555z

Quackenbos - A Mental Arithmetic - New paperback or softback - 84 - X555z

Quackenbos - A Mental Arithmetic - New paperback or softback - 20 - X555z

McMurchy - Arithmetic for Junior Pupils - New paperback or softback - - X555z

Boardman - Arithmetic Rules and Reasons - New paperback or softback - - X555z