Mahmoud Ahmed Darwish (2023) “The study of numbers and basic operations, such as addition, subtraction, multiplication, and division”, African Diaspora Journal of Mathematics ISSN: 1539-854X, Multidisciplinary UGC CARE GROUP I, 22(2), pp. 1–12. Available at: https://newjournalzone.in/index.php/ijmfsmr/article/view/45 (Accessed: 24 November 2024).