Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleThe Non-commutativity of Subtraction.AuthorsMitchell, Charles E.PublicationSchool Science & Mathematics, 1983, Vol 83, Issue 2, p133ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1983.tb10100.x