<p><span style="font-size:22px"><a href="https://www.prepswift.com/quizzes/quiz/prepswift-of-integers-in-interval" target="_blank"># of Integers in Interval Exercise</a></span></p><p>To find the number of integers in an interval, simply use the formula below:</p>
<p style="text-align: center;"><em>Last Number<strong> </strong></em>$-$ <em>First Number</em> $+1$</p>
<p>For example, to find the number of integers from $27$ to $84$, inclusive...</p>
<p>$$84-27+1=58$$</p>
<p><strong>NOTE</strong>: The word "inclusive" means you include the $27$ and $84$ in the range and the word "exclusive" means you don't. If you see the word exclusive, you would instead do:</p>
<p>$$83-28+1=56$$</p>