EasyChair Preprint № 3107 Factor - Factor Causes of Errors in Resolving Problems Math Students About the Cube and Beam Surface Area Class VIII Zulfan Idris Shaleh Harahap, Dedi Ahmad Syaputra, Dini Nurani and Raudah Ummu Fahda Damanik EasyChair preprints are intended for rapid dissemination of research results and are integrated with the rest of EasyChair. April 3, 2020