Lawthongkum, A., Khunno, C., Samakhom, L., Khomobklang, S. and Suksakunee, J. 2023. Mathematic Supplementary Development on Title of Division, Addition, Subtraction, Multiplication and Decimal for Prathomsuksa 6 Students. Interdisciplinary Academic and Research Journal . 3, 4 (Aug. 2023), 227–236. DOI:https://doi.org/10.14456/iarj.2023.187.