"One of the best and easiest things to do with children to improve their math skills is to play card games and board games."

ChildUp Early Learning Key #5: Games are great early learning tools
Indeed, academic learning is work that requires concentration, discipline, and perseverance. At the same time, in early education, play is as important as homework. Since Children like playing, and since many games are educational (block, puzzle, card and board games being among the most efficient during the first years), it’s a smart strategy to use them as favorite early learning tools, as well as rewards.