tag:blogger.com,1999:blog-2569360793617885894.post7750636386543000488..comments2024-03-05T15:21:29.508-03:00Comments on Ensino de Matemática : Adição e Subtração de Fraçõesaccbarroso1http://www.blogger.com/profile/10921352640702425453noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2569360793617885894.post-44512561095054152662018-12-18T17:36:03.205-03:002018-12-18T17:36:03.205-03:00porque igual a 60...de onde saiu o 60?porque igual a 60...de onde saiu o 60?Anonymoushttps://www.blogger.com/profile/12426283728641399936noreply@blogger.com