This game is aligned with Grade 2 Common Core State Standards:
Use place value understanding and properties and operations to add and subtract.
Use place value understanding and properties of operations to add and subtract.
Represent and solve problems involving addition and subtraction.
Problems require students to use different strategies. Problems can be modified to fit the needs of your students.
I recommend having every student use a dry erase board, or a piece of paper, and answer every question, to ensure they understand the content, and they don't get distracted, waiting for their group to get to pick a question.