Interpret Signed Numbers (Word Problems) Problems

<p>A well was drilled to a depth of `80` feet. </p><p>If the top of the well has an elevation of `0` feet, what value represents the bottom of the well?</p>

<p>The cruising altitude of an airplane was `28text{,}000` feet above sea level. </p><p>What value represents the plane's elevation?</p>

<p>Amber's score in a video game changed by `2text{,}500` points during the last level. </p><selectivedisplay data-props='{"show_in_create":true,"show_in_problem_qa": true}'><p>What does `2text{,}500` represent?</p> <ul><li>Amber's score increased by `2text{,}500` points.</li> <li>Amber's score stayed the same.</li> <li>Amber's score decreased by `2text{,}500` points.</li></ul></selectivedisplay>

<p>The last play for The Tigers changed their field position by `-38` yards. </p><selectivedisplay data-props='{"show_in_create":true,"show_in_problem_qa": true}'><p>What does `-38` yards represent?</p><ul><li>The Tigers gained `38` yards.</li> <li>The Tigers did not gain or lose any yards.</li> <li>The Tigers lost `38` yards.</li></ul></selectivedisplay>

<p>Isabel has a credit card with a balance of `$324.52`. </p><p>What value represents Isabel's balance?</p>

<p>Leaving the ground, a hot air balloon ascends `1text{,}200` feet. </p><p>If the ground level has an elevation of `0` feet, what value represents the balloon's elevation?</p>

<p>Frank's bank statement showed an entry of `-$100` on March `5`. </p><selectivedisplay data-props='{"show_in_create":true,"show_in_problem_qa": true}'><p>What does `-$100` represent?</p> <ul><li>Frank's balance increased by `$100`.</li><li>Frank's balance stayed the same.</li><li>Frank's balance decreased by `$100`.</li></ul></selectivedisplay>

<p>Sylvie parked her car on an overlook with an elevation of `-40` feet. </p><selectivedisplay data-props='{"show_in_create":true,"show_in_problem_qa": true}'><p>What does `-40` feet represent?</p><ul><li>Her car is parked `40` feet above sea level.</li><li>Her car is parked at sea level.</li><li>Her car is parked `40` feet below sea level.</li> </ul></selectivedisplay>