{"id":8769,"date":"2020-12-15T09:55:30","date_gmt":"2020-12-15T04:25:30","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=8769"},"modified":"2020-12-15T10:15:57","modified_gmt":"2020-12-15T04:45:57","slug":"order-operations-evaluating-expressions","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/order-operations-evaluating-expressions\/","title":{"rendered":"Order of Operations and Evaluating Expressions"},"content":{"rendered":"

Order of Operations and Evaluating Expressions<\/strong><\/span><\/h2>\n

Order of Operations<\/strong>
\nWhen a numerical expression involves two or more operations, there is a specific order in which these operations must be performed.
\n\"Order<\/p>\n

When evaluating an expression, proceed in this order:<\/strong><\/p>\n

    \n
  1. parentheses are done first.<\/li>\n
  2. exponents are done next.<\/li>\n
  3. multiplication and division are done as they are encountered from left to right.<\/li>\n
  4. addition and subtraction are done as they are encountered from left to right.<\/li>\n<\/ol>\n

    The proper application of “order of operations” is needed when working with such mathematical topics as evaluating formulas, solving equations, evaluating algebraic expressions, and simplifying monomials and polynomials.<\/p>\n

    There is a phrase that may help you to remember this order: PEMDAS<\/strong>
    \nParenthesis, Exponents, (Multiplication\/Division), (Add\/Subtract)<\/strong><\/p>\n

    While PEMDAS lists M before D, remember that multiplication and division are done as they are read from left to right. It may not always be the case that multiplication is done “before” division.
    \nThe expression 16 \u00f7 4 x 2 = 8 (not 2).
    \nThe same is true of addition and subtraction: 8 – 4 + 2 = 6 (not 2).<\/p>\n

    \"\"<\/p>\n

    The reason (multiplication & division – MD) and (add & subtract – AS) are “grouped” in sets of parentheses is that when those operations are next to each other you do the math from left to right.<\/strong> You do not always do multiplication or addition first. It may be the case where division will be done BEFORE multiplication or subtraction will be done BEFORE addition.<\/p>\n

    \"\"<\/p>\n

     <\/p>\n

    Read More:<\/strong><\/p>\n