The Doctor is IN

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The Doctor is IN

• Tutorial Order of Operations

START
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• To aid you in working through this tutorial,
  you need to become familiar with the following
• To go to the next slide, click
• To go back to the previous slide, click
• To quit, click
• To go to the first slide, click
• To go to the end of the tutorial, click

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Lesson Overview

• Objectives
• Use order of operations to evaluate numerical
  expressions.
• Why do we need to learn more about the order of
  operations?
• We need rules to follow in mathematics so that
  everyone works equations the same. Math is a
  universal language.
• Visit the following address to learn more
• http//mathforum.org/library/drmath/view/58237.htm
  l

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Can I take your ORDER please?

• When there is more than one operation to occur in
  the same expression, there is a particular order
  to follow when solving.
• Read each step
• Perform operations inside
  parentheses.
• Simplify any exponents or square
  roots.
• Multiply and divide in order from
  left to right.
• Add and subtract in order from left
  to right.

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• You can remember this order with the following
  device
• P-E-M-D-A-S
• Please Excuse My Dear Aunt Sally.
• Parentheses
• Exponents
• Multiply
• Divide
• Add
• Subtract

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• Following the steps
• 5 5 x 5 5 5
• Ask yourself
• Are there parentheses? No
• Are there exponents or square roots? No
• Is there any multiplication or division? Yesso
  lets get busy!
• 5 5 x 5 5 5
• 5 25 5 5
• 5 25 1
• Now, add and subtract in order.
  
  30 1
• 29

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• Lets try another
• 5² 4 x 3 (2 1) 3
• Follow the steps for an example.

5² 4 x 3 1 3 25 4 x 3 1 3 25 12 1
3 37 3 34
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REVIEW

• Remember, before you operate, you must think of
  these steps P-e-m-d-a-s
• Parentheses
• Exponents
• Multiply
• Divide
• Add and subtract in order.
• Each expression is like a puzzle needing to be
  solved. You can do it!

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• You will now work a quiz to see how well you
  understand the
• order of operations.
• For each expression, you will need pencil and
  paper to work through your problem.
• Make your selection by clicking the correct
  answer on the screen.
• Good Luck!

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Problem 1 6 6 x 6 6 6
A. 2
B. 41
C. 11
D. 30
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Sorry! Try again!
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Fantastic! Way to Go!
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Problem 2 (2 2) x 2 2 2
A. 3
B. 6
C. 7
D. 5
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Sorry! Try again!
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You are ohhh so cool!
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Problem 3 2² 4(4 4) 2²
A. 6
B. 12
C. 40
D. 19
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Sorry! Try again!
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Keep on trucking!
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__Problem 4 v 36 3² - 4(2 1)
A. 11
B. 8
C. 16
D. 38
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Sorry! Try again!
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Awesome!
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___Problem 5 9² (5 3)x 2 x 4² - v169 13
A. 2190
B. 63
C. 144
D. 40
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Sorry! Try again!
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Super Duper!
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Whew! You are done!

• You made it to the end of the quiz. You may go
  back to the beginning of the tutorial if you
  still do not understand. You will soon be a whiz
  at operating.

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References
Alabama State Course of Study in
Mathematics Math 76 An Incremental Development
3rd ed. (1997). Saxon Publishers, Inc. and
Stephen Hake, OK,(402-404).