Set up like a game of four square, this presentation-style game presents Second Grade level addition problems and encourages kids to use the sum to problem solve.  As you guide them through the game, a ball will cover one of the numbers, requiring them to either remember or subtract to find the answer.  Great for one on one teaching sessions, small group intervention, or for extra practice with addition to build confidence and number sense.  
This activity is easy to keep on a device to have a quick time filler and perfect to share with kids who are learning virtually.