“A Comparative Study of the Effect of the Methods of Decomposition and Base Complement Addition on Ghanaian Children’s Perfomance on Compound Substraction: A Comparative Study of the Effect of the Methods of Decomposition and Base Complement Addition on Ghanaian Children’s Perfomance on Compound Substraction”. 2018. The Oguaa Educator 12 (June): 28-52. https://journal.ucc.edu.gh/index.php/oguaaeducator/article/view/503.