Order of Operations


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Order of Operations

  1. 1. Order of Operations By Darrin Goldberg
  2. 2. Understanding Order of Operations <ul><li>Order of Operations can also be known as Pemdas. </li></ul><ul><li>Pemdas stands for parentheses, exponent,multiplacation, division, addition, subtraction. IT MUST BE IN THAT ORDER!!! </li></ul><ul><li>Another way to remember it is please (p) excuse (e) my (m) dear (d) aunt (a) sally (s). </li></ul>
  3. 3. Parentheses <ul><li>Parentheses seperate some numbers from the rest. They create a barrier from the numbers. The numbers inside the parentheses would be solved first. The reason they would be solved first is because the p or parentheses was the first letter in pemdas. </li></ul><ul><li>Example of parentheses: </li></ul><ul><li>  </li></ul><ul><li>2+ 5 (4-3) + 1 </li></ul>
  4. 4. Exponent <ul><li>An exponent is made up of two parts. The parts are the base and the exponent itself. The base is the original number that is written down. The exponent is the much smaller number to the right of the base. Remember that exponent does not mean the base multiplied by the exponent itself, it means that  the base is multiplied that many times. </li></ul><ul><li>Here is an example of an exponent: 32. This means three to the second power or three x three.  </li></ul>
  5. 5. Multiplication <ul><li>When you get up to multiplication all you have to do is multiply like you would regularly. Just multiply the numbers that are there in front of you. Here's an example of multiplication: </li></ul><ul><li>5 x 20. All you would have to do in this problem is just count the number 20 five times or count five 20 times. 20 x 5 = 100. To check, just divide. 100/ 25 = 5. </li></ul>
  6. 6. Division <ul><li>After your multiplication, you have your division. If you know your multiplication tables, then division should be easy for you as well. Division is just taking one number and dividing it or putting it into another. Here's an example: </li></ul><ul><li>25/100. This means that 25 is going into 100. 25 divided by 100 is 4. To check, just multiply. 25 x 4 = 100. </li></ul>
  7. 7. Addition <ul><li>After division come the last two steps. One of them is addition. Addition is simply taking one number and adding onto another. Here's an example: </li></ul><ul><li>7+5= 12 What you do is take 7 and add 5 to it which is what makes the answer 12. </li></ul>
  8. 8. Subtraction <ul><li>Subtraction is the last step in the order of operations.It is the opposite of addition. It is just simply taking away from a number. Here's an example: </li></ul><ul><li>7-5=2 All you have to do is take the number 7 and take 5 away from it. this is what makes the answer 2. </li></ul>
  9. 9. Problem     <ul><li>I'm going to give you a problem. Using all the information i gave you, you have to solve it. If you get confused, just look back at the previous slides. Make sure you finish the problem. Here it is: </li></ul><ul><li>1,000 x(200/5+10) - 657+ 63= ? Okay, there's your problem. Try to solve it. </li></ul>