Question

An elevator is two floors below ground level and goes up 5 floors. Write an addition equation that models the location of the elevator relative to ground level.

Answer 1

Answer: d= +5-2 = 3

Explanation:

An elevator is two floor below the ground level. Any distance below the ground level is always measured with the negative notation.

So the location of the elevator given by (-2)

Now when elevator goes up by 5 floors, the location of elevator relative to the ground level will be (+5)

d=+5-2