The Bean Game
Take an amount of large beans to hold in your hands. Choose a number like 8. Have a player count out 8 beans. Place the beans in your hand and hide them behind your back.
While they’re behind your back put some beans in each hand. You may put 3 in one hand and 5 in the other. Show the player the beans in one hand. The player must tell you how many beans you have in the other hand. Play this again using another combination. This helps your child learn all the combinations of a number sum.