<p><a href="https://www.prepswift.com/quizzes/quiz/prepswift-real-number-properties-i" target="_blank">Real Number Properties I Exercise</a></p><p>Whenever you're completing operations on real numbers, we need to keep in mind several <strong><span style="color:#27ae60;">Real Number Properties</span></strong>:</p>
<ul>
<li><span style="color:#e74c3c;">Property 1</span>: Adding number $a$ to number $b$ is the same thing as adding number $b$ to number $a$.</li>
</ul>
<p>$$a+b=b+a$$</p>
<ul>
<li><span style="color:#e74c3c;">Property 2</span>: Multiplying number $a$ by number $b$ is the same as multiplying number $b$ by number $a$.</li>
</ul>
<p>$$ab = ba$$</p>
<ul>
<li><span style="color:#e74c3c;">Property 3</span>: It doesn't matter what order you add things in.</li>
</ul>
<p>$$(a+b)+c=a+(b+c)$$</p>