How much greater is 5 miles than 8000?

Answer 1

Without any UNITS for the 8000 it is impossible to answer as a number with units in incomparable to a number with units.

I guess you meant 8000 METRES as 5 miles is approx 8 km.

1 mile = 1609.344 m (exactly)

5 miles = 5 × 1609.334 m (exactly) = 8046.72 m (exactly)

→ 5 miles are 8046.72 m - 8000 m = 46.72 m greater.

Answer 2

The answer depends on the units used for 8000. It should be blindingly obvious that there will be very different answers for 8000 inches and 8000 feet.