Question

Mike’s room is 12 feet by 16 feet. He has a 10-foot by 12-foot rug on the floor.

Answer 1

1st: 
You would multiply 12 x 16 because that's the total area.

2nd:
Then you would multiply 10 x 12 because that's the amount you're subtracting from the total area.

3rd: 
(12 x 16) - (10 x 12) = 
192 - 120 =

A. 72 ft2