<p><a href="https://www.prepswift.com/quizzes/quiz/prepswift-real-number-properties-ii" target="_blank">Real Number Properties II 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 4</span>: If you're multiplying a number a parentheses together, where numbers are being added or subtracted in the parentheses, you can multiply each element in the parentheses by the "outside" number. If that doesn't make sense, look at the examples below:</li>
</ul>
<p>$$a(b+c)=ab+ac$$ </p>
<p>$$5(7-5)=5\times7 -5\times5=35-25=10$$</p>
<ul>
<li><span style="color:#e74c3c;">Property 5</span>: Adding $0$ to any number returns the original number.</li>
</ul>
<p>$$a+0=a$$</p>
<ul>
<li><span style="color:#e74c3c;">Property 6</span>: Multiplying any number by $0$ results in $0$.</li>
</ul>
<p>$$a \times 0 = 0$$</p>
<ul>
<li><span style="color:#e74c3c;">Property 7</span>: Multiplying anything by $1$ just returns the original number.</li>
</ul>
<p>$$a \times 1 = a$$</p>