## Basic Operations on Whole Numbers (Addition and Subtraction)

<h1><strong>WHOLE NUMBERS</strong></h1> CONTENT <ol> <li>Order of Operations (PEMDAS/BODMAS)</li> <li>Addition and Subtraction of Numbers with Place Values</li> <li>Use of Number Line</li> <li>Addition and Subtraction of Positive and Negative Numbers</li> </ol> <br> <h2><strong>Order of Operations (PENDAS/BODMAS)</strong></h2> <strong>Can you answer this?</strong>7 - 1 × 0 + 3 ÷ 3 = ?In arithmetic, there are two types of components: the numbers themselves and the operators (also called operations) that tell you what to do with those numbers. The <strong><em>basic operators</em></strong> in arithmetic are addition (sum), subtraction (difference), multiplication (product) and division (quotient).So, in the sum 7 × 3 + 5 there are three numbers; 7, 3 and 5 and two operators, a multiplication (×) and an addition (+). The order of operations used throughout mathematics, science, technology and many computer programming languages is expressed here. <ol> <li>Exponents (index) and roots</li> <li>Multiplication and division</li> <li>Addition and subtraction</li> </ol> The definitive order of operations is summed up in the acronym <strong>BODMAS</strong>, which stands for Brackets, Order, Divide, Multiply, Add, Subtract. It would be easier if BODMAS was recognised worldwide, but unfortunately it isn’t.<img class="size-full wp-image-23462 aligncenter" src="https://classhall.com/wp-content/uploads/2018/06/whole-numbers-BODMAS.jpg" alt="Whole numbers - BODMAS" width="458" height="149" />