Mathematics is a science that studies certain aspects of the real world, possessing a system of fundamental knowledge and cognitive methods essential for daily life and work. To help students achieve high results and confidence in learning mathematics, the incorporation of mathematical games by teachers is indispensable in math lessons. When participating in learning games, children imagine, contemplate, experiment, and reason to achieve results without feeling like they are learning. This reduces the dryness of math lessons and makes the learning process more natural and engaging. Math learning games actively engage students. In practice, the use of games for continuous assessment in teaching natural numbers in mathematics at primary schools in Thu Dau Mot city has not been regularly implemented, necessitating measures to address this limitation.