Using area model, at the theater, one section of seats has 8 rows with 12 seats in each row. In the center of each of the first 3 rows are 4 broken seats that cannot be used. How many seats can be used in the section?
First find the area : 12×8=96 Then find the number of broken seats: 3 (rows)×4( broken seats)=12 The subtract total number of seats and the broken seat = 96 - 12 = 84 seats ANSWER: 84 seats can be used
