Games for you to apply your addition knowledge within 20 to.
https://www.arcademics.com/games/alien
https://www.starfall.com/h/addsub/addsub-ladder/?sn=math1--math0 https://www.topmarks.co.uk/maths-games/hit-the-button https://www.bbc.co.uk/games/embed/karate-cats-2?exitGameUrl=http%3A%2F%2Fbbc.com%2Fbitesize%2Farticles%2Fzf4sscw