Posted by **Sumaiya** on Thursday, October 21, 2010 at 9:23pm.

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 ?

How would you explanin this? Whats the Answer

- Math -
**Reiny**, Thursday, October 21, 2010 at 9:27pm
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.

- Math -
**Ms. Sue**, Thursday, October 21, 2010 at 9:28pm
15 - (-4) = 19 feet

Use a number line to explain it.

- Math -
**Bosnian**, Friday, October 22, 2010 at 1:10am
15-(-4)=15+4=19

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