Question

A mountain climber climbed down a cliff 50 feet at a time. He did this 5 times in one day. What was the overall change in his elevation?

Answer 1

`-"250 ft"`

Explanation:

Every time he climbs down, he experiences a change in elevation of `-50` feet as he is climbing DOWN.

So he does this five times. The total change in elevation `= 5 xx (-"50 ft") = -"250 ft"`