With a partner, take turns choosing a problem. Each player will calculate the sum or difference, and simplify if possible. If you correctly answer the problem, mark the space as your square. If you answer incorrectly, and your partner answers correctly then the space is theirs. The first player to get three in a row wins. All work must be shown!
This includes subtracting from just a whole number, as well as REGROUPING.
ANSWER KEY INCLUDED!!!!!!!!