Question

Jackson wants to paint a 3 foot border around the edge of the floor in his room . 14ft by 10ft. What area of the floor will remain unpainted?

Answer 1

14*10=140 feet
140*3= 420 feet

Answer 2

Take the length of the outer rectangle, 14 ft, and subtract 3 ft twice. Then take the width of the outer rectangle, 10 ft, and subtract 3 ft twice. That will give you the length and width of the inner rectangle. Then multiply that length and width of the inner rectangle to find its area.