The 3rd-grade students of MST Elementary were invited to attend a special performance of the Broadway Musical, The Lion King, in Dallas, Texas. The theater has 423 seats on the 1st floor and 398 on the 2nd floor. MST Elementary will take 208 students to the performance.
Use number lines to figure out the number of seats that will still be left in the theater. *Hint: you have to use 2 different operations, which means 2 different number lines. Circle your final answer, please.