Linda entered an elevator on floor 9. She rode down 8 floors then she rode up 11 floors and got off. What floor was she on when she left the elevator?

12. 9 - 8 + 11 = ?

12 To find out what floor Linda was on when she left the elevator, we can start by determining her initial floor and then adding or subtracting the number of floors she traveled.

In this case, Linda entered the elevator on floor 9. Since she rode down 8 floors, we can subtract 8 from floor 9: 9 - 8 = 1.

After riding down 8 floors, Linda was on the first floor.

Next, Linda rode up 11 floors from the first floor. To find the final floor, we add 11 to the first floor: 1 + 11 = 12.

Therefore, Linda was on the 12th floor when she left the elevator.