The highest point in NewOrleans, Louisiana is 15 feet above sea level.The Lowest Pont is 4 feet below sea level. Howmuch higher is the highest point than the lowest point ?

Question

How would you explanin this? Whats the Answer

Answer 1

What is 15 - (-4) ?

or

Draw a number line, using integers.
from 0, move 4 units to the left and 15 units to the right.
Count the number of units from the left marker to the right marker.

Answer 2

15 - (-4) = 19 feet

Use a number line to explain it.

Answer 3

15-(-4)=15+4=19