Nancy replaced all of the old vinyl tiles in her bathroom with new hardwood flooring.  She replaced flooring in two areas of the bathroom: a 10 foot by 10 foot central area, and a 6 foot by 4 foot hallway.  How many square feet of hardwood flooring did Nancy install in her bathroom?
10 feet by 10 feet central area is 10*10=<<10*10=100>>100 square feet of space.
6 feet by 4 feet hallway is 4*6-24 square feet of space.
Combined, the two areas where she replaced flooring contain 100+24=<<100+24=124>>124 square feet of space.
#### 124