2021 Arkansas Teacher of the Year, Susanna Post, wants to take Frisbee to the highest points in Arkansas and its neighboring states. Can you help her figure out how many feet she and Frisbee will end up hiking if they visit multiple sites? Can you help her find the difference between one state’s highest point and another state’s highest point? Join Ms. Post for a fun lesson on addition and subtraction! The worksheet that accompanies this lesson gives students the opportunity to practice adding and subtracting multi-digit, whole numbers.