Online math games
Online addition game: https://www.multiplication.com/games/play/fish-shop-addition
Online addition game: https://www.multiplication.com/games/play/cone-crazy-addition
Online doubles game: https://www.topmarks.co.uk/maths-games/hit-the-button
Ideas for games with dice and cards
These games will need an adult or older sibling to teach the game.
Online card games: https://www.educationworld.com/a_lesson/archives/boxcars.shtml