There’s lots of math resources and inspiration online:

Coffee Cups and Crayons: https://www.coffeecupsandcrayons.com/kindergarten-active-math-games/

Math Worksheets: https://www.education.com/worksheets/kindergarten/math/

Dreme: https://dreme.stanford.edu/news/math-games-excite-young-minds

Math for Young Children: https://funlearningforkids.com/preschool-math-activities/