Question

A submarine dives 155 meters below sea level and then rises 117 meters. What is the new location of the submarine?

Answer 1

38 meters below sea level.

Explanation:

if the sub dives 155 BELOW sea level, this equals -155.

then it RISES 117 meters, which equals +117.

we can make this into an equation

-155+117=-38!

the location of the sub is 38 meters below sea level.